CVE-2025-32912Network attack vector

Client crash via missing Digest nonce check

Published Apr 14, 2025 · Updated Jun 30, 2026

NULL pointer dereference in SoupAuthDigest in GNOME libsoup before 3.6.5 allows remote attackers to crash a client via an HTTP response. The Digest challenge parser accepts a 401 response without a nonce and later dereferences that missing value in soup-auth-digest.c. Exploitation requires a client request to an attacker-controlled HTTP server and affects availability only by terminating the client process.

CVSS severity6.5
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in SoupAuthDigest in GNOME libsoup before 3.6.5 allows remote attackers to crash a client via an HTTP response. The Digest challenge parser accepts a 401 response without a nonce and later dereferences that missing value in soup-auth-digest.c. Exploitation requires a client request to an attacker-controlled HTTP server and affects availability only by terminating the client process.

The record

CVE
CVE-2025-32912
Published
Apr 14, 2025
Updated
Jun 30, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 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?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
GNOME · libsoupversion=0 <3.6.5
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.

Published CVSS scores

6.5SUSECVSS:3.1/AV:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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