CVE-2014-9087

Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of service (crash) via a crafted OID in a (1) S/MIME message or (2) ECC based OpenPGP data, which triggers a buffer overflow.

Published: 2014-12-01 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-9087 is rated Moderate Risk (58.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 4.48%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-9087

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-13 6.90% 4.48% -2.42%
2 2026-02-27 6.16% 6.90% +0.75%
3 2026-01-09 — 6.16% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-9087

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2014-9087

OS Trackers for CVE-2014-9087

vendor priority summary link
debian unimportant CVE-2014-9087 unimportant priority: Debian including 2 source packages (gnupg2, libksba), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2014-9087
redhat medium — https://access.redhat.com/security/cve/CVE-2014-9087
suse high CVE-2014-9087 severity important: SUSE including 262 source package names (0.9.1:libksba8-1.3.0-9.1, 1.0.0:libksba8-1.3.0-9.1, …), 331 product×package rows across 91 product lines (Container caasp/v4/default-http-backend, Container caasp/v4/dnsmasq-nanny, … (91 product lines)): Fixed 173, Known Affected 157, Known Not Affected 1. https://www.suse.com/security/cve/CVE-2014-9087/
ubuntu medium CVE-2014-9087 medium priority: Ubuntu including 2 source packages (gnupg2, libksba), 10 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): released 4, not-affected 3, DNE 1, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2014-9087

Affected software / configurations for CVE-2014-9087

Vendor Product Version Raw CPE
mageia mageia 3.0 cpe:2.3:o:mageia:mageia:3.0:*:*:*:*:*:*:*
mageia mageia 4.0 cpe:2.3:o:mageia:mageia:4.0:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
gnupg libksba < 1.3.2 cpe:2.3:a:gnupg:libksba:*:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.10 cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
gnupg gnupg 2.1.0 cpe:2.3:a:gnupg:gnupg:2.1.0:-:*:*:*:*:*:*
gnupg gnupg 2.1.0 cpe:2.3:a:gnupg:gnupg:2.1.0:beta1:*:*:*:*:*:*

References for CVE-2014-9087

URL Tags
http://advisories.mageia.org/MGASA-2014-0498.html Third Party Advisory
http://lists.gnupg.org/pipermail/gnupg-announce/2014q4/000359.html Mailing List Vendor Advisory
http://secunia.com/advisories/60073 Third Party Advisory
http://secunia.com/advisories/60189 Third Party Advisory
http://secunia.com/advisories/60233 Third Party Advisory
http://www.debian.org/security/2014/dsa-3078 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2014:234 Not Applicable
http://www.mandriva.com/security/advisories?name=MDVSA-2015:151 Not Applicable
http://www.securityfocus.com/bid/71285 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2427-1 Patch Third Party Advisory
https://blog.fuzzing-project.org/2-Buffer-overflow-and-other-minor-issues-in-GnuPG-and-libksba-TFPA-0012014.html Third Party Advisory
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