pdf up to 4.05 ActualText out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
2.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in pdf up to 4.05. Affected by this vulnerability is the function ActualText. Such manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2024-3900. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability was found in pdf up to 4.05. It has been rated as problematic. Affected by this issue is the function ActualText. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is availability. CVE summarizes:

Out-of-bounds array write in Xpdf 4.05 and earlier, triggered by long Unicode sequence in ActualText.

The weakness was shared by Sangbin Kim. The advisory is shared for download at xpdfreader.com. This vulnerability is handled as CVE-2024-3900 since 04/16/2024. The exploitation is known to be difficult. The attack needs to be approached locally. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 277536 (Fedora 42 : texlive-base / xpdf (2025-e72c726192)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (277536). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.7
VulDB Meta Temp Score: 2.7

VulDB Base Score: 2.5
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 2.9
CNA Vector (Glyph & Cog, LLC): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 277536
Nessus Name: Fedora 42 : texlive-base / xpdf (2025-e72c726192)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/16/2024 🔍
04/17/2024 +1 days 🔍
04/17/2024 +0 days 🔍
12/05/2025 +597 days 🔍

Sourcesinfo

Advisory: xpdfreader.com
Researcher: Sangbin Kim
Status: Not defined

CVE: CVE-2024-3900 (🔍)
GCVE (CVE): GCVE-0-2024-3900
GCVE (VulDB): GCVE-100-261404

Entryinfo

Created: 04/17/2024 21:03
Updated: 12/05/2025 19:37
Changes: 04/17/2024 21:03 (61), 05/24/2024 13:12 (1), 12/05/2025 19:37 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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