How severe is CVE-2005-1923?

CVE-2005-1923 has a CVSS 2.0 base score of 2.6, rated low severity.

Is CVE-2005-1923 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-1923?

CVE-2005-1923 primarily affects Clam Anti-virus Clamav. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-1923?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2005-1923 published?

CVE-2005-1923 was published on 2005-07-05 and last updated on 2026-06-16.

CVE-2005-1923

CVE-2005-1923 is a low-severity vulnerability in Clam Anti-virus Clamav with a CVSS 2.0 base score of 2.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.6)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Clam Anti-virus Clamav
Published: 2005-07-05
Last modified: 2026-06-16

Description

The ENSURE_BITS macro in mszipd.c for Clam AntiVirus (ClamAV) 0.83, and other versions vefore 0.86, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a cabinet (CAB) file with the cffile_FolderOffset field set to 0xff, which causes a zero-length read.

Frequently asked questions

What is CVE-2005-1923?: The ENSURE_BITS macro in mszipd.c for Clam AntiVirus (ClamAV) 0.83, and other versions vefore 0.86, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a cabinet (CAB) file with the cffile_FolderOffset field set to 0xff, which causes a zero-length read.
How severe is CVE-2005-1923?: CVE-2005-1923 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2005-1923 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-1923?: CVE-2005-1923 primarily affects Clam Anti-virus Clamav. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-1923?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-1923 published?: CVE-2005-1923 was published on 2005-07-05 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:clam_anti-virus:clamav:0.83:*:*:*:*:*:*:*
cpe:2.3:a:clam_anti-virus:clamav:0.84_rc1:*:*:*:*:*:*:*
cpe:2.3:a:clam_anti-virus:clamav:0.84_rc2:*:*:*:*:*:*:*
cpe:2.3:a:clam_anti-virus:clamav:0.85:*:*:*:*:*:*:*
cpe:2.3:a:clam_anti-virus:clamav:0.85.1:*:*:*:*:*:*:*

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