MEDIUM
CVE-2023-45920
CWE-476Published: March 27, 2024· Updated: Jun 17, 2026
4.2
CVSS v3.1
Official Description
Xfig v3.2.8 was discovered to contain a NULL pointer dereference when calling XGetWMHints(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server or window manager.
Technical Analysis
CVE-2023-45920 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.2.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
Affected Vendors & Products
xfig_project1 product(s)
xfig
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
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Rapid7 / Metasploit
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (5)
→
http://seclists.org/fulldisclosure/2024/Jan/48Mailing List · Third Party Advisory
→
https://sourceforge.net/p/mcj/tickets/155/Issue Tracking
→
http://seclists.org/fulldisclosure/2024/Jan/48Mailing List · Third Party Advisory
→
https://sourceforge.net/p/mcj/tickets/155/Issue Tracking
Quick Facts
CVE IDCVE-2023-45920
CVSS Score4.2 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected1 vendor(s)
PublishedMar 27, 2024
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-45920 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. CVE data is provided under the NVD usage policy.