CVE-2023-24283

Application crash via malformed Guess save file

Published Sep 14, 2026 · Updated Sep 14, 2026

Buffer overflow in the Guess puzzle in Simon Tatham's Portable Puzzle Collection before 20230116.5782e29 allows attackers to crash the application. The Guess save-file parser writes malformed saved-game data beyond an allocated buffer while reconstructing a puzzle state. A user must manually load the crafted file; the documented consequence is application termination rather than system-wide service loss.

CVSS severityUnavailable
Unscored
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the Guess puzzle in Simon Tatham's Portable Puzzle Collection before 20230116.5782e29 allows attackers to crash the application. The Guess save-file parser writes malformed saved-game data beyond an allocated buffer while reconstructing a puzzle state. A user must manually load the crafted file; the documented consequence is application termination rather than system-wide service loss.

The record

CVE
CVE-2023-24283
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Simon Tatham
Product
Simon Tatham's Portable Puzzle Collection
Classifications
T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <20230116.5782e29

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Simon Tatham · Simon Tatham's Portable Puzzle Collectionversion=0 <20230116.5782e29

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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