CVE-2025-32052Network attack vector

Memory disclosure or crashes via content sniffing

Published Apr 3, 2025 · Updated Jun 30, 2026

Heap buffer over-read in GNOME libsoup before 3.6.1 allows remote attackers controlling HTTP servers to expose process memory or crash clients. In sniff_unknown(), the whitespace-aware pattern loop can advance its stream index to the response-buffer end and then read beyond the allocation. Reachability requires SoupContentSniffer to inspect a crafted HTTP response; no memory write or code execution is reported.

CVSS severity6.5
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer over-read in GNOME libsoup before 3.6.1 allows remote attackers controlling HTTP servers to expose process memory or crash clients. In sniff_unknown(), the whitespace-aware pattern loop can advance its stream index to the response-buffer end and then read beyond the allocation. Reachability requires SoupContentSniffer to inspect a crafted HTTP response; no memory write or code execution is reported.

The record

CVE
CVE-2025-32052
Published
Apr 3, 2025
Updated
Jun 30, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 9.2 Extended Update Support
Classifications
CWE-126, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 3, 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 9.2 Extended Update SupportAffected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8.8 Extended Update SupportAffected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 9.4 Extended Update SupportAffected versions are unavailable in this record.
GNOME · libsoupversion=0 <3.6.1
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

6.5Red HatCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

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-126Buffer Over-read
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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