CVE-2011-1764 Other in n/a

What is CVE-2011-1764?

CVE-2011-1764 is a high-severity vulnerability in Exim Exim, published on 5 Oct 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-134

Which versions are affected by CVE-2011-1764?

It affects 1 product.

Products include Exim Exim.

How do I fix CVE-2011-1764?

Upgrade to a fixed version.

Is CVE-2011-1764 being exploited?

There is no known exploitation of CVE-2011-1764 in the wild and no public exploit code.

Other vulnerabilities in Exim Exim

• CVE-2026-45185 Use after free in Exim Critical 9.8
• CVE-2023-42115 Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability Critical 9.8
• CVE-2020-28017 Integer overflow in n/a Critical 9.8
• CVE-2020-28018 Use after free in n/a Critical 9.8
• CVE-2020-28020 Integer overflow in n/a Critical 9.8

All Exim Exim vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2011-1764, DSA-2232-1, GHSA-mhvp-9557-5gxf.