CVE-2025-27836Network attack vector

Code execution via overflowing print-buffer allocation

Published Mar 25, 2025 · Updated Nov 3, 2025

Buffer overflow in Artifex Ghostscript before 10.05.0 allows attackers to crash the process or execute code via crafted BJ10V output. In bj10v_print_page, the output allocation uses bits_per_column multiplied by line_size plus one without first rejecting an integer-overflowing product. Triggering the flaw requires BJ10V output with page dimensions that overflow this calculation; subsequent output writes exceed the undersized heap buffer.

CVSS severity9.8
Critical
EPSS probability0.58%
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 Artifex Ghostscript before 10.05.0 allows attackers to crash the process or execute code via crafted BJ10V output. In bj10v_print_page, the output allocation uses bits_per_column multiplied by line_size plus one without first rejecting an integer-overflowing product. Triggering the flaw requires BJ10V output with page dimensions that overflow this calculation; subsequent output writes exceed the undersized heap buffer.

The record

CVE
CVE-2025-27836
Published
Mar 25, 2025
Updated
Nov 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.4Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CanonicalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

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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