security flaw
Published Jan 6, 2005
7.2
HIGHCVSS 2.0
EPSS 2.62%
Description
Multiple buffer overflows in Exim before 4.43 may allow attackers to execute arbitrary code via (1) an IPv6 address with more than 8 components, as demonstrated using the -be command line option, which triggers an overflow in the host_aton function, or (2) the -bh command line option or dnsdb PTR lookup, which triggers an overflow in the dns_build_reverse function.
Affected products
No data.
- ≤ 4.40
- 4.41
- 4.42
No data.
Red Hat Enterprise Linux 4
exim-0:4.43-1.RHEL4.3
Fixed · RHSA-2005:025
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | exim-0:4.43-1.RHEL4.3 | Fixed | RHSA-2005:025 |
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:L/AC:L/Au:N/C:C/I:C/A:C
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 1, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.62% (0.02618) | 84.90th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.62% (0.02618) | 83.39th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.82% (0.02817) | 84.89th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.41% (0.01413) | 68.52th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.82% (0.02817) | 85.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.19% (0.00188) | 57.49th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.19% (0.00188) | 56.48th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00188) | 54.44th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.82% (0.06818) | 92.16th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.82% (0.06818) | 91.42th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.82% (0.06818) | 79.55th | v2 (v2022.01.01) |
No CWE recorded.
References (14)
- http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44 x_refsource_CONFIRM
- http://security.gentoo.org/glsa/glsa-200501-23.xml vendor-advisoryx_refsource_GENTOOVendor Advisory
- http://www.debian.org/security/2005/dsa-635 vendor-advisoryx_refsource_DEBIANVendor Advisory
- http://www.debian.org/security/2005/dsa-637 vendor-advisoryx_refsource_DEBIANVendor Advisory
- http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html mailing-listx_refsource_MLIST
- http://www.idefense.com/application/poi/display?id=179&type=vulnerabilities third-party-advisoryx_refsource_IDEFENSEVendor Advisory
- http://www.idefense.com/application/poi/display?id=183&type=vulnerabilities third-party-advisoryx_refsource_IDEFENSEExploitVendor Advisory
- http://www.kb.cert.org/vuls/id/132992 third-party-advisoryx_refsource_CERT-VNPatchUS Government Resource
- http://www.redhat.com/support/errata/RHSA-2005-025.html vendor-advisoryx_refsource_REDHATPatch
- https://access.redhat.com/security/cve/CVE-2005-0021 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1617439 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2005-0021
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10347 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2005-0021
Change history (0)
No recorded changes yet.