LOW
fetchmail/mutt/evolution/...: APOP password disclosure vulnerability
Published Apr 16, 2007
2.6
LOWCVSS 2.0
EPSS 2.42%
Description
The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) attacks that use crafted message IDs and MD5 collisions. NOTE: this design-level issue potentially affects all products that use APOP, including (1) Thunderbird 1.x before 1.5.0.12 and 2.x before 2.0.0.4, (2) Evolution, (3) mutt, (4) fetchmail before 6.3.8, (5) SeaMonkey 1.0.x before 1.0.9 and 1.1.x before 1.1.2, (6) Balsa 2.3.16 and earlier, (7) Mailfilter before 0.8.2, and possibly other products.
Affected products
No data.
- n/a
No data.
Red Hat Enterprise Linux 2.1
fetchmail-0:5.9.0-21.7.3.el2.1.6
Fixed · RHSA-2007:0385
Red Hat Enterprise Linux 2.1
seamonkey-0:1.0.9-0.1.el2
Fixed · RHSA-2007:0402
Red Hat Enterprise Linux 3
evolution-0:1.4.5-20.el3
Fixed · RHSA-2007:0353
Red Hat Enterprise Linux 3
fetchmail-0:6.2.0-3.el3.4
Fixed · RHSA-2007:0385
Red Hat Enterprise Linux 3
mutt-5:1.4.1-5.el3
Fixed · RHSA-2007:0386
Red Hat Enterprise Linux 3
seamonkey-0:1.0.9-0.1.el3
Fixed · RHSA-2007:0402
Red Hat Enterprise Linux 4
devhelp-0:0.10-0.8.el4
Fixed · RHSA-2007:0402
Red Hat Enterprise Linux 4
evolution-0:2.0.2-35.0.2.el4
Fixed · RHSA-2007:0353
Red Hat Enterprise Linux 4
fetchmail-0:6.2.5-6.0.1.el4
Fixed · RHSA-2007:0385
Red Hat Enterprise Linux 4
mutt-5:1.4.1-12.0.3.el4
Fixed · RHSA-2007:0386
Red Hat Enterprise Linux 4
ruby-0:1.8.1-7.el4_8.3
Fixed · RHSA-2009:1140
Red Hat Enterprise Linux 4
seamonkey-0:1.0.9-2.el4
Fixed · RHSA-2007:0402
Red Hat Enterprise Linux 4
thunderbird-0:1.5.0.12-0.1.el4
Fixed · RHSA-2007:0401
Red Hat Enterprise Linux 5
evolution-data-server-0:1.8.0-15.0.3.el5
Fixed · RHSA-2007:0344
Red Hat Enterprise Linux 5
fetchmail-0:6.3.6-1.0.1.el5
Fixed · RHSA-2007:0385
Red Hat Enterprise Linux 5
mutt-5:1.4.2.2-3.0.2.el5
Fixed · RHSA-2007:0386
Red Hat Enterprise Linux 5
ruby-0:1.8.5-5.el5_3.7
Fixed · RHSA-2009:1140
Red Hat Enterprise Linux 5
thunderbird-0:1.5.0.12-1.el5
Fixed · RHSA-2007:0401
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 2.1 | fetchmail-0:5.9.0-21.7.3.el2.1.6 | Fixed | RHSA-2007:0385 |
| Red Hat Enterprise Linux 2.1 | seamonkey-0:1.0.9-0.1.el2 | Fixed | RHSA-2007:0402 |
| Red Hat Enterprise Linux 3 | evolution-0:1.4.5-20.el3 | Fixed | RHSA-2007:0353 |
| Red Hat Enterprise Linux 3 | fetchmail-0:6.2.0-3.el3.4 | Fixed | RHSA-2007:0385 |
| Red Hat Enterprise Linux 3 | mutt-5:1.4.1-5.el3 | Fixed | RHSA-2007:0386 |
| Red Hat Enterprise Linux 3 | seamonkey-0:1.0.9-0.1.el3 | Fixed | RHSA-2007:0402 |
| Red Hat Enterprise Linux 4 | devhelp-0:0.10-0.8.el4 | Fixed | RHSA-2007:0402 |
| Red Hat Enterprise Linux 4 | evolution-0:2.0.2-35.0.2.el4 | Fixed | RHSA-2007:0353 |
| Red Hat Enterprise Linux 4 | fetchmail-0:6.2.5-6.0.1.el4 | Fixed | RHSA-2007:0385 |
| Red Hat Enterprise Linux 4 | mutt-5:1.4.1-12.0.3.el4 | Fixed | RHSA-2007:0386 |
| Red Hat Enterprise Linux 4 | ruby-0:1.8.1-7.el4_8.3 | Fixed | RHSA-2009:1140 |
| Red Hat Enterprise Linux 4 | seamonkey-0:1.0.9-2.el4 | Fixed | RHSA-2007:0402 |
| Red Hat Enterprise Linux 4 | thunderbird-0:1.5.0.12-0.1.el4 | Fixed | RHSA-2007:0401 |
| Red Hat Enterprise Linux 5 | evolution-data-server-0:1.8.0-15.0.3.el5 | Fixed | RHSA-2007:0344 |
| Red Hat Enterprise Linux 5 | fetchmail-0:6.3.6-1.0.1.el5 | Fixed | RHSA-2007:0385 |
| Red Hat Enterprise Linux 5 | mutt-5:1.4.2.2-3.0.2.el5 | Fixed | RHSA-2007:0386 |
| Red Hat Enterprise Linux 5 | ruby-0:1.8.5-5.el5_3.7 | Fixed | RHSA-2009:1140 |
| Red Hat Enterprise Linux 5 | thunderbird-0:1.5.0.12-1.el5 | Fixed | RHSA-2007:0401 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
2.6 LOW NVD
AV:N/AC:H/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.42% 0.02423
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02423
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.42% (0.02423) | 83.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.42% (0.02423) | 81.99th | v5 (v2026.06.15) |
| Dec 1, 2025 | 12.97% (0.12973) | 93.84th | v4 (v2025.03.14) |
| Jun 4, 2025 | 3.61% (0.03612) | 87.22th | v4 (v2025.03.14) |
| May 15, 2025 | 6.48% (0.06475) | 90.56th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.54% (0.08540) | 91.56th | v4 (v2025.03.14) |
| Mar 29, 2025 | 13.68% (0.13682) | 90.42th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.54% (0.08540) | 91.75th | v4 (v2025.03.14) |
| Dec 17, 2024 | 42.78% (0.42776) | 97.39th | v3 (v2023.03.01) |
| Jun 11, 2024 | 8.84% (0.08844) | 94.57th | v3 (v2023.03.01) |
| May 4, 2024 | 9.53% (0.09532) | 94.71th | v3 (v2023.03.01) |
| Mar 27, 2024 | 6.29% (0.06290) | 93.46th | v3 (v2023.03.01) |
| Feb 18, 2024 | 1.93% (0.01931) | 88.25th | v3 (v2023.03.01) |
| Jan 11, 2024 | 1.54% (0.01545) | 85.75th | v3 (v2023.03.01) |
| Sep 18, 2023 | 1.15% (0.01150) | 83.13th | v3 (v2023.03.01) |
| Aug 11, 2023 | 0.71% (0.00706) | 77.87th | v3 (v2023.03.01) |
| May 29, 2023 | 0.54% (0.00540) | 73.98th | v3 (v2023.03.01) |
| Apr 22, 2023 | 0.52% (0.00516) | 73.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.73% (0.00732) | 77.78th | v3 (v2023.03.01) |
| Mar 6, 2023 | 9.12% (0.09121) | 94.16th | v2 (v2022.01.01) |
| Apr 1, 2022 | 9.12% (0.09121) | 93.62th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.12% (0.09121) | 86.89th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (77)
- ftp://patches.sgi.com/support/free/security/advisories/20070602-01-P.asc vendor-advisoryx_refsource_SGI
- http://balsa.gnome.org/download.html x_refsource_CONFIRM
- http://docs.info.apple.com/article.html?artnum=305530 x_refsource_CONFIRM
- http://fetchmail.berlios.de/fetchmail-SA-2007-01.txt x_refsource_CONFIRM
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742 vendor-advisoryx_refsource_HP
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00774579 vendor-advisoryx_refsource_HP
- http://lists.apple.com/archives/security-announce/2007/May/msg00004.html vendor-advisoryx_refsource_APPLE
- http://mail.gnome.org/archives/balsa-list/2007-July/msg00000.html mailing-listx_refsource_MLIST
- http://secunia.com/advisories/25353 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25402 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/25476 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25496 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/25529 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/25534 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25546 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/25559 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25664 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25750 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25798 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25858 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25894 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26083 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26415 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35699 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200706-06.xml vendor-advisoryx_refsource_GENTOO
- http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.571857 vendor-advisoryx_refsource_SLACKWARE
- http://sourceforge.net/forum/forum.php?forum_id=683706 x_refsource_CONFIRM
- http://sylpheed.sraoss.jp/en/news.html x_refsource_CONFIRM
- http://www.claws-mail.org/news.php x_refsource_CONFIRM
- http://www.debian.org/security/2007/dsa-1300 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2007/dsa-1305 vendor-advisoryx_refsource_DEBIANPatch
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:105 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:107 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:113 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:119 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:131 vendor-advisoryx_refsource_MANDRIVA
- http://www.mozilla.org/security/announce/2007/mfsa2007-15.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.novell.com/linux/security/advisories/2007_14_sr.html vendor-advisoryx_refsource_SUSE
- http://www.novell.com/linux/security/advisories/2007_36_mozilla.html vendor-advisoryx_refsource_SUSE
- http://www.openwall.com/lists/oss-security/2009/08/15/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2009/08/18/1 mailing-listx_refsource_MLIST
- http://www.redhat.com/support/errata/RHSA-2007-0344.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0353.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0385.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0386.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0401.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0402.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2009-1140.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/464477/30/0/threaded mailing-listx_refsource_BUGTRAQVendor Advisory
- http://www.securityfocus.com/archive/1/464569/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/470172/100/200/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/471455/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/471720/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/471842/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/23257 vdb-entryx_refsource_BIDPatch
- http://www.securitytracker.com/id?1018008 vdb-entryx_refsource_SECTRACK
- http://www.trustix.org/errata/2007/0019/ vendor-advisoryx_refsource_TRUSTIX
- http://www.trustix.org/errata/2007/0024/ vendor-advisoryx_refsource_TRUSTIX
- http://www.ubuntu.com/usn/usn-469-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/usn-520-1 vendor-advisoryx_refsource_UBUNTU
- http://www.us-cert.gov/cas/techalerts/TA07-151A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2007/1466 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/1467 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/1468 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/1480 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/1939 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/1994 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/2788 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2008/0082 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2007-1558 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=241191 Issue Tracking
- https://issues.rpath.com/browse/RPL-1231 x_refsource_CONFIRM
- https://issues.rpath.com/browse/RPL-1232 x_refsource_CONFIRM
- https://issues.rpath.com/browse/RPL-1424 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2007-1558
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9782 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2007-1558
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 16, 2007
Updated Aug 7, 2024
Reserved Mar 20, 2007
Link CVE-2007-1558
CISA Vulnrichment
Updated n/a