High 8.1Published Aug 5, 2010

CVE-2010-2547Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certifica…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

CVSS: 8.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

gnupg gnupg gnupg:gnupg	from 2.0.0 through 2.0.16	NVD
fedoraproject fedora fedoraproject:fedora	13	NVD
debian debian_linux debian:debian_linux	5.0	NVD

References

References

http://lists.fedoraproject.org/pipermail/package-announce/2010-August/044935.html	mailing-list, third-party-advisory
http://lists.gnupg.org/pipermail/gnupg-announce/2010q3/000302.html	patch, vendor-advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html	mailing-list, third-party-advisory
http://secunia.com/advisories/38877	broken-link, vendor-advisory
http://secunia.com/advisories/40718	broken-link, vendor-advisory
http://secunia.com/advisories/40841	broken-link, vendor-advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462008	broken-link
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0076	broken-link
http://www.debian.org/security/2010/dsa-2076	mailing-list, third-party-advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:143	broken-link
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.