CVE-2020-15945

MEDIUM
5.5
CVSS Score
Published: July 24, 2020 at 08:05 PM UTC
Updated: June 17, 2026 at 02:57 AM UTC
1 product affected across 1 vendorLua

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.5%

Description

Lua 5.4.0 (fixed in 5.4.1) has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.3.1 ≤ v < 5.4.0
Affected range stops below 5.4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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