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CVE-2024-7868

Uninitialized variable in Xpdf 4.05 due to invalid JPEG header

HIGH
8.2
CVSS Score
Published: August 15, 2024 at 08:22 PM UTC
Updated: June 17, 2026 at 08:21 AM UTC
2 products affected across 2 vendorsXpdfXpdf

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Severity
HIGH8.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

In Xpdf 4.05 (and earlier), invalid header info in a DCT (JPEG) stream can lead to an uninitialized variable in the DCT decoder. The proof-of-concept PDF file causes a segfault attempting to read from an invalid address.

Affected

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

Xpdf· Xpdfreader
95%
v < 4.06
Affected range stops below 4.06, so it looks safe — our inference, not a vendor statement
Xpdf· Xpdf
60%
v ≤ 4.05

Remediation

No guide yet

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

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://www.xpdfreader.com/security-bug/CVE-2024-7868.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-908CWE-457

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