How severe is CVE-2008-1833?

CVE-2008-1833 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2008-1833 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1833?

CVE-2008-1833 affects Clam Anti-virus Clamav. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-1833?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-1833 published?

CVE-2008-1833 was published on 2008-04-16 and last updated on 2026-06-16.

CVE-2008-1833

CVE-2008-1833 is a high-severity vulnerability in Clam Anti-virus Clamav with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 9% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Clam Anti-virus Clamav
Published: 2008-04-16
Last modified: 2026-06-16

Description

Heap-based buffer overflow in pe.c in libclamav in ClamAV 0.92.1 allows remote attackers to execute arbitrary code via a crafted WWPack compressed PE binary.

Frequently asked questions

What is CVE-2008-1833?: Heap-based buffer overflow in pe.c in libclamav in ClamAV 0.92.1 allows remote attackers to execute arbitrary code via a crafted WWPack compressed PE binary.
How severe is CVE-2008-1833?: CVE-2008-1833 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2008-1833 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1833?: CVE-2008-1833 affects Clam Anti-virus Clamav. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-1833?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-1833 published?: CVE-2008-1833 was published on 2008-04-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:clam_anti-virus:clamav:0.92.1:*:*:*:*:*:*:*

More vulnerabilities in Clam Anti-virus Clamav

CVE-2008-1100 — Critical (CVSS 10.0): Buffer overflow in the cli_scanpe function in libclamav (libclamav/pe.c) for ClamAV 0.92 and 0.92.1 allows remote…
CVE-2008-0318 — Critical (CVSS 10.0): Integer overflow in the cli_scanpe function in libclamav in ClamAV before 0.92.1, as used in clamd, allows remote…
CVE-2007-6337 — Critical (CVSS 10.0): Unspecified vulnerability in the bzip2 decompression algorithm in nsis/bzlib_private.h in ClamAV before 0.92 has…
CVE-2007-3023 — Critical (CVSS 10.0): unsp.c in ClamAV before 0.90.3 and 0.91 before 0.91rc1 does not properly calculate the end of a certain buffer, with…
CVE-2005-3587 — Critical (CVSS 10.0): Improper boundary checks in petite.c in Clam AntiVirus (ClamAV) before 0.87.1 allows attackers to perform unknown…
CVE-2008-5050 — Critical (CVSS 9.3): Off-by-one error in the get_unicode_name function (libclamav/vba_extract.c) in Clam Anti-Virus (ClamAV) before 0.94.1…

All CVEs affecting Clam Anti-virus Clamav →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →