CVE-2012-1147: apple mac_os_x Improper Input Validation
Vulnerability summary
CVE-2012-1147 is a medium (CVSS 4.3) Improper Input Validation vulnerability in apple mac_os_x. EPSS estimates a 2.57% chance of exploitation in the next 30 days, higher than 85.1% of scored vulnerabilities.
Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 03-07-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.57%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.57% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu8 products
- apache2All versions (No fix recorded)
- apr-utilAll versions (No fix recorded)
- cmakeAll versions (No fix recorded)
- ghostscriptAll versions (No fix recorded)
- smartAll versions (No fix recorded)
Apple1 product
- mac_os_x10.11.0 | 10.11.1
Debian1 product
- libxmltokAll versions (No fix recorded)
Libexpat_project1 product
- libexpat≤ 2.0.1 | 1.95.1 | 1.95.2 | 1.95.4 | 1.95.5 | 1.95.6 | 1.95.7 | 1.95.8 | 2.0.0
4 vendors · 11 products
References
13 links- sourceforge.net/projects/expat/files/expat/2.1.0/X Refsource CONFIRM
- sourceforge.net/tracker/?func=detail&aid=2895533&group_id=10127&atid=110127X Refsource CONFIRM
- trac.wxwidgets.org/ticket/11432X Refsource MISC
- trac.wxwidgets.org/ticket/11194X Refsource MISC