HIGH
CVE-2023-31102
CWE-191Published: November 3, 2023· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.
Technical Analysis
CVE-2023-31102 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
https://security.netapp.com/advisory/ntap-20231110-0007/Third Party Advisory
→
https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/Issue Tracking · Release Notes
→
https://www.zerodayinitiative.com/advisories/ZDI-23-1165/Third Party Advisory · VDB Entry
→
https://security.netapp.com/advisory/ntap-20231110-0007/Third Party Advisory
→
https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/Issue Tracking · Release Notes
→
https://www.zerodayinitiative.com/advisories/ZDI-23-1165/Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2023-31102
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-191
CISA KEVNo
Affected3 vendor(s)
PublishedNov 3, 2023
Related CVEs (CWE-191)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-31102 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.