CVE-2020-35532Public exploit

Application crash via unchecked X3F row offset

Published Sep 1, 2022 · Updated Aug 4, 2024

Out-of-bounds read in LibRaw 0.20-RC2 through 0.21-Beta1 allows local users to crash an image-processing application via a crafted X3F image. simple_decode_row() uses row times row_stride to form an X3F data pointer without first ensuring that the requested row remains inside ID->data. A user must cause an application embedding the library to decode the crafted file; the demonstrated consequence is an access-violation crash.

CVSS severity5.5
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in LibRaw 0.20-RC2 through 0.21-Beta1 allows local users to crash an image-processing application via a crafted X3F image. simple_decode_row() uses row times row_stride to form an X3F data pointer without first ensuring that the requested row remains inside ID->data. A user must cause an application embedding the library to decode the crafted file; the demonstrated consequence is an access-violation crash.

The record

CVE
CVE-2020-35532
Published
Sep 1, 2022
Updated
Aug 4, 2024
Vendor
LibRaw LLC
Product
LibRaw
Classifications
CWE-125, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 2022CVE 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?

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

  1. Affected versionversion=LibRaw 0.21-Beta1, LibRaw 0.20.2, LibRaw 0.20.1, LibRaw 0.20.0, LibRaw 0.20-RC2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

LibRaw LLC · LibRawversion=LibRaw 0.21-Beta1, LibRaw 0.20.2, LibRaw 0.20.1, LibRaw 0.20.0, LibRaw 0.20-RC2

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1204.002Malicious File

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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