CVE-2007-2846 json
Heap-based buffer overflow in the SIS unpacker in avast!
published 2007-05-24 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-2838
- cvss
- 9.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 7.7%
- EPSS 7.7% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
Heap-based buffer overflow in the SIS unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted SIS archive, resulting from an "integer cast around."
Exploit prediction
7.74% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
vupen.com
/english/advisories/2007/1935
vdb-entry, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/34501
vdb-entry
-
securityfocus.com
/bid/24155
vdb-entry
- avast.com /eng/adnm-management-client-revision-history.html
-
marc.info
/?l=full-disclosure&m=118007660813710&w=2
mailing-list
-
kb.cert.org
/vuls/id/125868
third-party-advisory, us-government-resource
-
osvdb.org
/36522
vdb-entry
-
securityfocus.com
/archive/1/469585/100/0/threaded
mailing-list
- nruns.com /advisories/%5Bn.runs-SA-2007.009%5D%20-%20Avast%21%20Antivirus%20SIS%20parsing%20Arbitrary%20Code%20Execution
Sources
- CVE List CVE-2007-2846
- NVD CVE-2007-2846
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