security flaw
Published Jun 2, 2006
2.6
LOWCVSS 2.0
EPSS 1.77%
Description
HTTP response smuggling vulnerability in Mozilla Firefox and Thunderbird before 1.5.0.4, when used with certain proxy servers, allows remote attackers to cause Firefox to interpret certain responses as if they were responses from two different sites via (1) invalid HTTP response headers with spaces between the header name and the colon, which might not be ignored in some cases, or (2) HTTP 1.1 headers through an HTTP 1.0 proxy, which are ignored by the proxy but processed by the client.
Affected products
No data.
- ≤ 1.5.0.3
- ≤ 1.5.0.3
No data.
Red Hat Enterprise Linux 3
seamonkey-0:1.0.2-0.1.0.EL3
Fixed · RHSA-2006:0578
Red Hat Enterprise Linux 4
devhelp-0:0.10-0.2.el4
Fixed · RHSA-2006:0609
Red Hat Enterprise Linux 4
firefox-0:1.5.0.5-0.el4.1
Fixed · RHSA-2006:0610
Red Hat Enterprise Linux 4
seamonkey-0:1.0.3-0.el4.1
Fixed · RHSA-2006:0609
Red Hat Enterprise Linux 4
thunderbird-0:1.5.0.5-0.el4.1
Fixed · RHSA-2006:0611
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
n/a
Fixed · RHSA-2006:0594
Red Hat Enterprise Linux ES version 2.1
n/a
Fixed · RHSA-2006:0594
Red Hat Enterprise Linux WS version 2.1
n/a
Fixed · RHSA-2006:0594
Red Hat Linux Advanced Workstation 2.1
n/a
Fixed · RHSA-2006:0594
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | seamonkey-0:1.0.2-0.1.0.EL3 | Fixed | RHSA-2006:0578 |
| Red Hat Enterprise Linux 4 | devhelp-0:0.10-0.2.el4 | Fixed | RHSA-2006:0609 |
| Red Hat Enterprise Linux 4 | firefox-0:1.5.0.5-0.el4.1 | Fixed | RHSA-2006:0610 |
| Red Hat Enterprise Linux 4 | seamonkey-0:1.0.3-0.el4.1 | Fixed | RHSA-2006:0609 |
| Red Hat Enterprise Linux 4 | thunderbird-0:1.5.0.5-0.el4.1 | Fixed | RHSA-2006:0611 |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | n/a | Fixed | RHSA-2006:0594 |
| Red Hat Enterprise Linux ES version 2.1 | n/a | Fixed | RHSA-2006:0594 |
| Red Hat Enterprise Linux WS version 2.1 | n/a | Fixed | RHSA-2006:0594 |
| Red Hat Linux Advanced Workstation 2.1 | n/a | Fixed | RHSA-2006:0594 |
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.
AV:N/AC:H/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.77% (0.01766) | 77.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.73% (0.01733) | 74.61th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.35% (0.02350) | 83.45th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.88% (0.06878) | 85.28th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.35% (0.02350) | 83.79th | v4 (v2025.03.14) |
| Dec 17, 2024 | 16.48% (0.16480) | 95.99th | v3 (v2023.03.01) |
| Dec 13, 2023 | 12.27% (0.12267) | 94.85th | v3 (v2023.03.01) |
| Sep 6, 2023 | 11.61% (0.11607) | 94.56th | v3 (v2023.03.01) |
| Jul 29, 2023 | 11.26% (0.11256) | 94.41th | v3 (v2023.03.01) |
| Jun 21, 2023 | 11.90% (0.11899) | 94.51th | v3 (v2023.03.01) |
| May 14, 2023 | 15.21% (0.15215) | 95.00th | v3 (v2023.03.01) |
| Apr 6, 2023 | 6.09% (0.06093) | 92.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.19% (0.05192) | 91.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.93% (0.03932) | 85.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.93% (0.03932) | 84.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.93% (0.03932) | 67.70th | v2 (v2022.01.01) |
No CWE recorded.
References (51)
- http://rhn.redhat.com/errata/RHSA-2006-0609.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/20376 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20382 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20561 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/20709 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21134 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21176 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21178 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21183 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21188 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21269 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21270 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21324 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21336 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21532 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21631 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22065 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22066 third-party-advisoryx_refsource_SECUNIA
- http://securitytracker.com/id?1016202 vdb-entryx_refsource_SECTRACK
- http://securitytracker.com/id?1016214 vdb-entryx_refsource_SECTRACK
- http://www.debian.org/security/2006/dsa-1118 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2006/dsa-1120 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2006/dsa-1134 vendor-advisoryx_refsource_DEBIAN
- http://www.gentoo.org/security/en/glsa/glsa-200606-12.xml vendor-advisoryx_refsource_GENTOO
- http://www.gentoo.org/security/en/glsa/glsa-200606-21.xml vendor-advisoryx_refsource_GENTOO
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:143 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:145 vendor-advisoryx_refsource_MANDRIVA
- http://www.mozilla.org/security/announce/2006/mfsa2006-33.html x_refsource_CONFIRMVendor Advisory
- http://www.novell.com/linux/security/advisories/2006_35_mozilla.html vendor-advisoryx_refsource_SUSE
- http://www.redhat.com/support/errata/RHSA-2006-0578.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2006-0594.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2006-0610.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2006-0611.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/435795/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/446657/100/200/threaded vendor-advisoryx_refsource_HP
- http://www.securityfocus.com/archive/1/446658/100/200/threaded vendor-advisoryx_refsource_HP
- http://www.securityfocus.com/bid/18228 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/2106 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2006/3748 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2006/3749 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2008/0083 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2006-2786 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1618120 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26844 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2006-2786
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9966 vdb-entrysignaturex_refsource_OVAL
- https://usn.ubuntu.com/296-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/296-2/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/297-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/323-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2006-2786
Change history (0)
No recorded changes yet.