CVE-2011-1764
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before...
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
Exploit likelihood
What each source reports
NVD Score used
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
- Record
CVE-2011-1764- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-134
- Updated
- 2026-11-02
CVE List No score
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
- Record
CVE-2011-1764- Updated
- 2026-11-02
EUVDEUVD-2011-1763 No score
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
- Record
EUVD-2011-1763- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mhvp-9557-5gxf No score
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before...
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
- Record
GHSA-mhvp-9557-5gxf- Weakness
- CWE-134
- Updated
- 2026-11-02
OSV No score
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
- Record
CVE-2011-1764- Updated
- 2026-11-02
OSVDEBIAN-CVE-2011-1764 No score
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
- Record
DEBIAN-CVE-2011-1764- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10017-1 No score
exim-4.86.2-2.2 on GA media
These are all security issues fixed in the exim-4.86.2-2.2 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10017-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
exim4Debian:12 |
before 4.75-3 | 4.75-3 |
exim4Debian:13 |
before 4.75-3 | 4.75-3 |
exim4Debian:14 |
before 4.75-3 | 4.75-3 |
exim4Debian:6.0 |
before 4.72-6+squeeze1, plus listed versions 4.72-64.72-6+squeeze1~bpo50+1 |
4.72-6+squeeze1 |
eximopenSUSE:Tumbleweed |
before 4.86.2-2.2 | 4.86.2-2.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-1764 is a high vulnerability (CVSS 7.5) in Exim, published May 6, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.94%, the 90th percentile. Fixed in exim4 4.75-3.
References
secunia.com/advisories/51155
lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
debian.org/security/2011/dsa-2232
git.exim.org/exim.git/commit/337e3505b0e6cd4309db6bf6062b33fa56e06cf8
bugzilla.redhat.com/show_bug.cgi?id=702474
bugs.exim.org/show_bug.cgi?id=1106
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bugs.debian.org/cgi-bin/bugreport.cgi?bug=624670
nvd.nist.gov/vuln/detail/CVE-2011-1764
github.com/advisories/GHSA-mhvp-9557-5gxf
security-tracker.debian.org/tracker/CVE-2011-1764
suse.com/security/cve/CVE-2010-2023