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Fencer Intel
medium 6.8

CVE-2011-1003 json

Double free vulnerability in the vba_read_project_strings function in vba_extract.c in libclamav in ClamAV before 0.97 might allow remote a…

published 2011-02-23 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1020

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Double free vulnerability in the vba_read_project_strings function in vba_extract.c in libclamav in ClamAV before 0.97 might allow remote attackers to execute arbitrary code via crafted Visual Basic for Applications (VBA) data in a Microsoft Office document. NOTE: some of these details are obtained from third party information.

Patch / fix

  • clamav Debian 14, Debian 13, Debian 12 0.97+dfsg-1

debian advisories DEBIAN-CVE-2011-1003

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-1003 updated cvss 6.8

clamav: Double free error by reading VBA project strings

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.21% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.