Integer overflow in Rarlab Unrar

CVE-2012-6706

A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in Dat…

Vulnerability class: Integer Overflow

EPSS: 0.100 (95.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2012-6706?
CVE-2012-6706 is a critical-severity vulnerability in Rarlab Unrar, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-06-22.
How severe is CVE-2012-6706?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2012-6706 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.