Off-by-one error in ClamAV before 0.92 allows remote attackers to execute arbitrary code via a crafted MS-ZIP compressed CAB file.
Noroxi assessment
Priority: Monitor (action score 28/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 4.2% (FIRST EPSS); higher than 90.7% of all records.
- Fixed version: clamav (Debian:12) 0.92~dfsg-1~volatile2; clamav (Debian:4.0) 0.90.1-3etch8; clamav (Debian:5.0) 0.91.2-4.0lenny1.
Low priority for now. Upgrade to clamav (Debian:12) 0.92~dfsg-1~volatile2; clamav (Debian:4.0) 0.90.1-3etch8; clamav (Debian:5.0) 0.91.2-4.0lenny1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
- Published
- Dec 19, 2007
- Updated
- Jun 16, 2026
- EPSS
- 4.2% · 91th percentile
- CWE
- CWE-119
Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 27 / 40 · 6.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 4.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| clam anti-virus | clamav | cpe:2.3:a:clam_anti-virus:clamav |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- clam anti-virus clamavup to 0.91 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | clamav | before 0.92~dfsg-1~volatile2 | 0.92~dfsg-1~volatile2 |
| Debian:4.0 | clamav | before 0.90.1-3etch8 | 0.90.1-3etch8 |
| Debian:5.0 | clamav | before 0.91.2-4.0lenny1 | 0.91.2-4.0lenny1 |
| openSUSE:Tumbleweed | clamav | before 0.103.3-1.4 | 0.103.3-1.4 |
Same product
clam anti-virus: all recordsOther highest-scoring records for the same primary product.
- CVE-2007-4560clamav-milter in ClamAV before 0.91.2, when run in black hole mode, allows remote attackers to execute arbitrary commands via shell metachar55Plan
- CVE-2008-1100Buffer overflow in the cli_scanpe function in libclamav (libclamav/pe.c) for ClamAV 0.92 and 0.92.1 allows remote attackers to execute arbit43Plan
- CVE-2008-0318Integer overflow in the cli_scanpe function in libclamav in ClamAV before 0.92.1, as used in clamd, allows remote attackers to cause a denia42Plan
- CVE-2007-3023unsp.c in ClamAV before 0.90.3 and 0.91 before 0.91rc1 does not properly calculate the end of a certain buffer, with unknown impact and remo41Plan
- CVE-2005-3587Improper boundary checks in petite.c in Clam AntiVirus (ClamAV) before 0.87.1 allows attackers to perform unknown attacks via unknown vector41Plan
- CVE-2008-5050Off-by-one error in the get_unicode_name function (libclamav/vba_extract.c) in Clam Anti-Virus (ClamAV) before 0.94.1 allows remote attacker39Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:clamav | 0.92~dfsg-1~volatile2 · Debian:12 | Package registry (OSV) |
| opensuse:clamav | 0.103.3-1.4 · openSUSE:Tumbleweed | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (18 more)Show less
- lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
- lists.opensuse.org/opensuse-security-announce/2008-01/msg00002.html
- secunia.com/advisories/28153
- secunia.com/advisories/28176
- secunia.com/advisories/28278
- secunia.com/advisories/28412
- secunia.com/advisories/28421
- secunia.com/advisories/28587
- secunia.com/advisories/29420
- security.gentoo.org/glsa/glsa-200712-20.xml
- securitytracker.com/id?1019150
- www.debian.org/security/2007/dsa-1435
- www.mandriva.com/security/advisories?name=MDVSA-2008:003
- www.securityfocus.com/bid/26946
- www.vupen.com/english/advisories/2008/0924/references
- exchange.xforce.ibmcloud.com/vulnerabilities/39169
- www.redhat.com/archives/fedora-package-announce/2008-January/msg00644.html
- www.redhat.com/archives/fedora-package-announce/2008-January/msg00740.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.