CVE-2020-12825Public exploitNetwork attack vector

Denial of service via unbounded parser recursion

Published May 12, 2020 · Updated Aug 4, 2024

Uncontrolled recursion in GNOME libcroco through 0.6.13 allows attackers to crash applications by supplying crafted CSS for parsing. The cr_parser_parse_any_core function in cr-parser.c recursively processes nested CSS constructs without enforcing a depth limit, exhausting the process stack. Exploitation requires control of CSS input passed to a consuming application and interrupts only that application process.

CVSS severity7.1
High
EPSS probability2.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in GNOME libcroco through 0.6.13 allows attackers to crash applications by supplying crafted CSS for parsing. The cr_parser_parse_any_core function in cr-parser.c recursively processes nested CSS constructs without enforcing a depth limit, exhausting the process stack. Exploitation requires control of CSS input passed to a consuming application and interrupts only that application process.

The record

CVE
CVE-2020-12825
Published
May 12, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-674, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 12, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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

7.1Oracle LinuxCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
5.8NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:P
7.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1499.004Application or System Exploitation

Public exploit references

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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