Buffer overflow in libclamav/upx.c in Clam AntiVirus (ClamAV) before 0.87 allows remote…
Priority MEDIUM 44Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Buffer overflow in libclamav/upx.c in Clam AntiVirus (ClamAV) before 0.87 allows remote attackers to execute arbitrary code via a crafted UPX packed executable.
Why it matters now
EPSS 0.08227 94th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:clam_anti-virus:clamav:0.70:*:*:*:*:*:*:* | 0.70 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.71:*:*:*:*:*:*:* | 0.71 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.72:*:*:*:*:*:*:* | 0.72 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.73:*:*:*:*:*:*:* | 0.73 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.74:*:*:*:*:*:*:* | 0.74 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.75:*:*:*:*:*:*:* | 0.75 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.75.1:*:*:*:*:*:*:* | 0.75.1 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.80:*:*:*:*:*:*:* | 0.80 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.81:*:*:*:*:*:*:* | 0.81 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.82:*:*:*:*:*:*:* | 0.82 | Vulnerable | Clam Anti-virus |
- cpe:2.3:a:clam_anti-virus:clamav:0.70:*:*:*:*:*:*:* Versions 0.70 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.71:*:*:*:*:*:*:* Versions 0.71 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.72:*:*:*:*:*:*:* Versions 0.72 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.73:*:*:*:*:*:*:* Versions 0.73 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.74:*:*:*:*:*:*:* Versions 0.74 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.75:*:*:*:*:*:*:* Versions 0.75 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.75.1:*:*:*:*:*:*:* Versions 0.75.1 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.80:*:*:*:*:*:*:* Versions 0.80 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.81:*:*:*:*:*:*:* Versions 0.81 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.82:*:*:*:*:*:*:* Versions 0.82 Vulnerable ·Clam Anti-virus
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:clam_anti-virus:clamav:0.83:*:*:*:*:*:*:* | 0.83 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.84:*:*:*:*:*:*:* | 0.84 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.85:*:*:*:*:*:*:* | 0.85 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.85.1:*:*:*:*:*:*:* | 0.85.1 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.86:*:*:*:*:*:*:* | 0.86 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.86.1:*:*:*:*:*:*:* | 0.86.1 | Vulnerable | Clam Anti-virus |
| cpe:2.3:a:clam_anti-virus:clamav:0.86.2:*:*:*:*:*:*:* | 0.86.2 | Vulnerable | Clam Anti-virus |
- cpe:2.3:a:clam_anti-virus:clamav:0.83:*:*:*:*:*:*:* Versions 0.83 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.84:*:*:*:*:*:*:* Versions 0.84 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.85:*:*:*:*:*:*:* Versions 0.85 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.85.1:*:*:*:*:*:*:* Versions 0.85.1 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.86:*:*:*:*:*:*:* Versions 0.86 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.86.1:*:*:*:*:*:*:* Versions 0.86.1 Vulnerable ·Clam Anti-virus
- cpe:2.3:a:clam_anti-virus:clamav:0.86.2:*:*:*:*:*:*:* Versions 0.86.2 Vulnerable ·Clam Anti-virus
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-2920
- 2026-10-03 Alias added: GHSA-gqh2-5g96-mr4j
References
More Clam Anti-virus Clamav vulnerabilities
- TI-2007-04414 clamav-milter in ClamAV before 0.91.2, when run in black hole mode, allows remote… CVSS 2.0HIGH 7.6
- TI-2008-01054 Buffer overflow in the cli_scanpe function in libclamav (libclamav/pe.c) for ClamAV 0.92… CVSS 2.0HIGH 10.0
- TI-2008-00296 Integer overflow in the cli_scanpe function in libclamav in ClamAV before 0.92.1, as used… CVSS 2.0HIGH 10.0
- TI-2006-04039 Integer overflow in ClamAV 0.88.1 and 0.88.4, and other versions before 0.88.5, allows… CVSS 2.0HIGH 7.5
- TI-2008-04803 Off-by-one error in the get_unicode_name function (libclamav/vba_extract.c) in Clam… CVSS 2.0HIGH 9.3
- TI-2007-06042 Integer overflow in libclamav in ClamAV before 0.92 allows remote attackers to execute… CVSS 2.0HIGH 7.5
Sources
- CVE-2005-2920 · CVE Program
- CVE-2005-2920 · NVD
- FIRST EPSS
- GHSA-gqh2-5g96-mr4j · GitHub Advisory Database · CC BY 4.0
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