Skip to main content

Sumatrapdf CVE-2012-4895

CRITICAL
Buffer Overflow (CWE-119)
2012-10-05 cve@mitre.org
9.3
CVSS 2.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.3 (CRITICAL). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 8.45%.

Exploit ScenarioDerived

A remote attacker could corrupt memory to execute arbitrary code or crash the application by sending crafted requests to the affected application.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 8.5% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Heap-based buffer overflow in SumatraPDF before 2.1 allows remote attackers to execute arbitrary code via a crafted PDF document, a different vulnerability than CVE-2012-4896. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. Heap-based buffer overflow in SumatraPDF before 2.1 allows remote attackers to execute arbitrary code via a crafted PDF document, a different vulnerability than CVE-2012-4896. Affected products include: Sumatrapdfreader Sumatrapdf. Version information: before 2.1.

Know when Sumatrapdf gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 9.3 CRITICAL
AV:N/AC:M/Au:N/C:C/I:C/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
M
Confidentiality
C
Integrity
C
Availability
C

DescriptionCVE.org

Heap-based buffer overflow in SumatraPDF before 2.1 allows remote attackers to execute arbitrary code via a crafted PDF document, a different vulnerability than CVE-2012-4896.

Threat Intelligence Overview

EPSS Score
8.5%
Top 8% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 8.5%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

54
Low Medium High Critical
KEV: 0
EPSS: +8
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:sumatrapdfreader:sumatrapdf:*:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.1:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.2:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.3:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.4:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.5:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.6:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.7:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.8:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:1.0:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:1.1:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:1.2:*:*:*:*:*:*:*
cpe:2.3:a:sumatrapdfreader:sumatrapdf:1.3:*:*:*:*:*:*:*
+ 8 more
CVE-2026-23512 HIGH POC
8.6 Jan 14

SumatraPDF 3.5.2 and earlier on Windows contains an untrusted search path vulnerability in the Advanced Options feature

CVE-2026-25880 HIGH POC
7.8 Feb 09

SumatraPDF 3.5.2 and earlier on Windows allows arbitrary code execution when a user opens a PDF and selects "Show in fol

CVE-2026-25961 HIGH POC
7.5 Feb 09

SumatraPDF versions 3.5.0 through 3.5.2 fail to validate TLS certificates during software updates and execute installers

CVE-2012-4896 CRITICAL
9.3 Oct 05

Heap-based buffer overflow in SumatraPDF before 2.1 allows remote attackers to execute arbitrary code via a crafted PDF

CVE-2026-25920 MEDIUM POC
5.5 Feb 09

SumatraPDF versions 3.5.2 and earlier are vulnerable to a heap buffer over-read in the MOBI file parser due to incomplet

CVE-2026-23951 MEDIUM POC
5.5 Jan 22

SumatraPDF on Windows is vulnerable to a denial-of-service attack through a maliciously crafted Mobi file that triggers

CVE-2023-33802 MEDIUM POC
5.5 Jul 26

A buffer overflow in SumatraPDF Reader v3.4.6 allows attackers to cause a Denial of Service (DoS) via a crafted text fil

CVE-2026-107732 HIGH
8.4 Oct 08

Local code execution in SumatraPDF 3.6.1 and earlier on Windows is possible when a user opens an attacker-supplied docum

CVE-2026-88361 HIGH
7.5 Sep 24

Parsing a malformed PDF in SumatraPDF 3.6.1 can crash the reader through a signed integer overflow in the PageLabels han

CVE-2026-107734 HIGH
7.1 Oct 08

Command-line argument injection in SumatraPDF 3.5.2 and earlier lets an attacker-controlled SyncTeX source filename esca

CVE-2026-107802 HIGH
7.1 Oct 08

Argument injection in the AI translation feature of SumatraPDF 3.6.1 and earlier allows text placed in a document select

CVE-2026-26054 MEDIUM
6.8 Sep 24

Opening a crafted MOBI e-book in SumatraPDF versions before 3.6 can crash the application because the MOBI header decode

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy