Null Pointer Dereference in libtiff's tiff2ps Component
CVE-2025-8534

2LOW

Key Information:

Vendor

Libtiff

Status
Libtiff
Vendor
CVE Published:
5 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8534?

A null pointer dereference vulnerability has been detected in the libtiff library, specifically targeting the tiff2ps component during the execution of the PS_Lvl2page function. This flaw can arise when certain options, such as DEFER_STRILE_LOAD or TIFFOpen with 'rD', are utilized. Although the attack complexity is high, the potential for local host exploitation raises concerns. Users are urged to apply the provided patch identified by commit 6ba36f159fd396ad11bf6b7874554197736ecc8b to mitigate risks associated with this vulnerability.

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Deploy the Patch

Affected Version(s)

libtiff 4.6.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-8534 - Proof of Concept

References

https://vuldb.com/?id.318664
vdb-entrytechnical-description
https://vuldb.com/?ctiid.318664
signaturepermissions-required
https://vuldb.com/?submit.617831
third-party-advisory

CVSS V4

Score:
2
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

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