CVE-2020-24994

HIGH
8.8
CVSS Score
Published: March 23, 2021 at 07:32 PM UTC
Updated: June 17, 2026 at 03:06 AM UTC
1 product affected across 1 vendorLibass

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Severity
HIGH8.8
Exploit prediction
EPSS 3%

Description

Stack overflow in the parse_tag function in libass/ass_parse.c in libass before 0.15.0 allows remote attackers to cause a denial of service or remote code execution via a crafted file.

Affected

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

v < 0.15.0
Affected range stops below 0.15.0, 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:

References (4)

x_refsource_MISCPatchThird Party Advisory
https://github.com/libass/libass/issues/422
x_refsource_MISCIssue TrackingPatchThird Party Advisory
https://github.com/libass/libass/issues/422#issuecomment-806002919
x_refsource_MISCThird Party Advisory
https://github.com/libass/libass/issues/423

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-770

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