readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial…
Priority LOW 25CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.02538 85th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:mac_os_x:10.11.0:*:*:*:*:*:*:* | 10.11.0 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.11.1:*:*:*:*:*:*:* | 10.11.1 | Vulnerable | Apple |
| cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* | up to 2.0.1 | Vulnerable | libexpat project |
| cpe:2.3:a:libexpat_project:libexpat:1.95.1:*:*:*:*:*:*:* | 1.95.1 | Vulnerable | libexpat project |
| cpe:2.3:a:libexpat_project:libexpat:1.95.2:*:*:*:*:*:*:* | 1.95.2 | Vulnerable | libexpat project |
| cpe:2.3:a:libexpat_project:libexpat:1.95.4:*:*:*:*:*:*:* | 1.95.4 | Vulnerable | libexpat project |
| cpe:2.3:a:libexpat_project:libexpat:1.95.5:*:*:*:*:*:*:* | 1.95.5 | Vulnerable | libexpat project |
| cpe:2.3:a:libexpat_project:libexpat:1.95.6:*:*:*:*:*:*:* | 1.95.6 | Vulnerable | libexpat project |
| cpe:2.3:a:libexpat_project:libexpat:1.95.7:*:*:*:*:*:*:* | 1.95.7 | Vulnerable | libexpat project |
| cpe:2.3:a:libexpat_project:libexpat:1.95.8:*:*:*:*:*:*:* | 1.95.8 | Vulnerable | libexpat project |
- cpe:2.3:o:apple:mac_os_x:10.11.0:*:*:*:*:*:*:* Versions 10.11.0 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.11.1:*:*:*:*:*:*:* Versions 10.11.1 Vulnerable ·Apple
- cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* Versions up to 2.0.1 Vulnerable ·libexpat project
- cpe:2.3:a:libexpat_project:libexpat:1.95.1:*:*:*:*:*:*:* Versions 1.95.1 Vulnerable ·libexpat project
- cpe:2.3:a:libexpat_project:libexpat:1.95.2:*:*:*:*:*:*:* Versions 1.95.2 Vulnerable ·libexpat project
- cpe:2.3:a:libexpat_project:libexpat:1.95.4:*:*:*:*:*:*:* Versions 1.95.4 Vulnerable ·libexpat project
- cpe:2.3:a:libexpat_project:libexpat:1.95.5:*:*:*:*:*:*:* Versions 1.95.5 Vulnerable ·libexpat project
- cpe:2.3:a:libexpat_project:libexpat:1.95.6:*:*:*:*:*:*:* Versions 1.95.6 Vulnerable ·libexpat project
- cpe:2.3:a:libexpat_project:libexpat:1.95.7:*:*:*:*:*:*:* Versions 1.95.7 Vulnerable ·libexpat project
- cpe:2.3:a:libexpat_project:libexpat:1.95.8:*:*:*:*:*:*:* Versions 1.95.8 Vulnerable ·libexpat project
Show 1 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libexpat_project:libexpat:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | libexpat project |
- cpe:2.3:a:libexpat_project:libexpat:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·libexpat project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
Not affected: 4 products
- Red Hat Directory Server 8
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1147
- 2026-10-03 Alias added: GHSA-c8m9-hqfc-w4mm
References
Other 5
- http://sourceforge.net/projects/expat/files/expat/2.1.0/
- http://expat.cvs.sourceforge.net/viewvc/expat/expat/xmlwf/readfilemap.c?r1=1.14&r2=1.15
- http://sourceforge.net/tracker/?func=detail&aid=2895533&group_id=10127&atid=110127
- http://trac.wxwidgets.org/ticket/11432
- http://trac.wxwidgets.org/ticket/11194
Sources
- CVE-2012-1147 · CVE Program
- CVE-2012-1147 · NVD
- FIRST EPSS
- GHSA-c8m9-hqfc-w4mm · GitHub Advisory Database · CC BY 4.0
- CVE-2012-1147 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences