CVE-2012-1163

Integer overflow in the _zip_readcdir function in zip_open.c in libzip 0.10 allows remote attackers to execute arbitrary code via the size and offset values for the central directory in a zip archive, which triggers "improper restrictions of operations within the bounds of a memory buffer" and an information leak.

Published: 2012-07-12 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-1163 is rated Moderate Risk (53.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.39%). 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-2012-1163

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 2025-03-30 2.96% 1.39% -1.57%
2 2025-03-29 1.39% 2.96% +1.57%
3 2025-03-19 — 1.39% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-1163

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2012-1163

OS Trackers for CVE-2012-1163

vendor priority summary link
debian not yet assigned CVE-2012-1163 not yet assigned priority: Debian including 1 source packages (libzip), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-1163
gentoo normal CVE-2012-1163: 1 GLSA(s) (201203-23), 1 atom(s) (dev-libs/libzip); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-1163
redhat medium — https://access.redhat.com/security/cve/CVE-2012-1163
suse medium CVE-2012-1163 severity moderate: SUSE including 18 source package names (libzip-devel-0.11.1-12.1, libzip-devel-0.11.1-13.3.1, …), 37 product×package rows across 28 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (28 product lines)): Fixed 37. https://www.suse.com/security/cve/CVE-2012-1163/
ubuntu medium CVE-2012-1163 medium priority: Ubuntu including 1 source packages (libzip), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): not-affected 4, ignored 1, released 1. https://ubuntu.com/security/CVE-2012-1163

Affected software / configurations for CVE-2012-1163

Vendor Product Version Raw CPE
nih libzip 0.10 cpe:2.3:a:nih:libzip:0.10:*:*:*:*:*:*:*

References for CVE-2012-1163

cvelogic Threat Intelligence