CVE-2012-6706
highpriority · track · 43EPSS 0.101 · 96 %ileEURUUSEPSS · scored 2026-10-27
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 DataSize+CurChannel. The result is a negative value of the "DestPos" variable, which allows the attacker to write out of bounds when setting Mem[DestPos].
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (22)
External citations — patches, advisories, analysis.
- https://community.sophos.com/kb/en-us/118424#sixPatchcnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.2881cnnvd
- http://securitytracker.com/id?1027725enisa_euvd
- http://telussecuritylabs.com/threats/show/TSL20121207-01enisa_euvd
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1286enisa_euvd
- https://community.sophos.com/kb/en-us/118424#sixenisa_euvd
- https://kc.mcafee.com/corporate/index?page=content&id=SB10205enisa_euvd
- https://lock.cmpxchg8b.com/sophailv2.pdfenisa_euvd
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