Integer underflow in libexif
Priority HIGH 69CWE-191Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-191 and the CVSS impact.
Summary
libexif through 0.6.25 has a flaw in decoding MakerNotes. If the exif_mnote_data_get_value function gets passed in a 0 size, the passed in-buffer would be overwritten due to an integer underflow.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.002 9th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Deferred Red Hat: fix deferred
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| libexif project | libexif | up to 0.6.25 | — | No fix listed | CNA |
- libexif Vendorlibexif project Affected up to 0.6.25 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libexif_project:libexif:*:*:*:*:*:*:*:* | up to 0.6.25 | Vulnerable | libexif project |
- cpe:2.3:a:libexif_project:libexif:*:*:*:*:*:*:*:* Versions up to 0.6.25 Vulnerable ·libexif project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32775
- 2026-10-03 Alias added: GHSA-pq8m-942f-68cv
References
More libexif project Libexif vulnerabilities
- TI-2017-05185 Out-of-bounds read in Red Hat libexif CVSS 3.0CRITICAL 9.1
- TI-2020-10306 An issue was discovered in libexif before 0.6.22. CVSS 3.1CRITICAL 9.1
- TI-2012-02433 Buffer overflow in the exif_entry_format_value function in exif-entry.c in the EXIF Tag… CVSS 2.0HIGH 7.5
- TI-2012-02457 Integer underflow in the exif_entry_get_value function in exif-entry.c in the EXIF Tag… CVSS 2.0HIGH 7.5
- TI-2012-02456 Off-by-one error in the exif_convert_utf16_to_utf8 function in exif-entry.c in the EXIF… CVSS 2.0HIGH 7.5
- TI-2020-00193 Integer overflow in Android CVSS 3.1HIGH 7.5
Sources
- CVE-2026-32775 · CVE Program
- CVE-2026-32775 · NVD
- FIRST EPSS
- GHSA-pq8m-942f-68cv · GitHub Advisory Database · CC BY 4.0
- CVE-2026-32775 · Red Hat security data · CC BY 4.0
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