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CVE-2025-32911

CRITICAL
Free of Memory not on the Heap (CWE-590)
2025-04-15 secalert@redhat.com
Buffer Overflow
9.0
CVSS 3.1 · Vendor: redhat
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Vulnerability Assessment

Weakness
CWE
CWE-590
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Free memory management
Impact

CVSS score of 9.0 (CRITICAL). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.61%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.
Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 0.6% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

A use-after-free type vulnerability was found in libsoup, in the soup_message_headers_get_content_disposition() function. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected ProductsAI

See vendor advisory for affected versions.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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Technical ContextAI · show details

This vulnerability is classified under CWE-590. A use-after-free type vulnerability was found in libsoup, in the soup_message_headers_get_content_disposition() function. This flaw allows a malicious HTTP client to cause memory corruption in the libsoup server.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (redhat) PRIMARY 9.0 CRITICAL
AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
SUSE 8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Red Hat 9.0 HIGH

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Patch released
Apr 05, 2026 - 20:30 nvd
Patch available
CVE Published
Apr 15, 2025 - 16:16 nvd
CRITICAL 9.0

DescriptionCVE.org

A use-after-free type vulnerability was found in libsoup, in the soup_message_headers_get_content_disposition() function. This flaw allows a malicious HTTP client to cause memory corruption in the libsoup server.

Executive ViewAI

Why It Matters

Organizations using A use-after-free type vulnerability face critical risk from CVE-2025-32911 rated CVSS 9.0. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.6%
Top 30% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS Vendor

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.6%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Very High

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +45
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Same weakness CWE-590 – Free of Memory not on the Heap

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9.8
CVE-2020-6016 CRITICAL POC
9.8
CVE-2022-31625 HIGH POC
8.1
CVE-2023-22291 HIGH POC
7.8
CVE-2026-76465 CRITICAL
9.8
CVE-2021-42377 CRITICAL
9.8
CVE-2026-95311 CRITICAL
9.6
CVE-2026-18582 MEDIUM POC
5.5

Same technique Buffer Overflow

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CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

Vendor StatusVendor

SUSE

Severity: High
Product Status
Container suse/sl-micro/6.0/baremetal-os-container:latest Affected
Container suse/sl-micro/6.0/base-os-container:latest Image SL-Micro Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE Affected
Container suse/sl-micro/6.0/kvm-os-container:latest Container suse/sl-micro/6.0/rt-os-container:latest Affected
Container suse/sl-micro/6.0/toolbox:latest Affected
Container suse/sl-micro/6.1/baremetal-os-container:2.2.1-7.62 Affected

References

Advisories & patches
ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:01504/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:01794/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:01801/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:01802/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:01864/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:1504/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20375/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:20446/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:4514/ REF https://access.redhat.com/errata/RHSA-2025:21657 REF https://access.redhat.com/errata/RHSA-2025:4439 REF https://access.redhat.com/errata/RHSA-2025:4440 REF https://access.redhat.com/errata/RHSA-2025:4508 REF https://access.redhat.com/errata/RHSA-2025:4538 REF https://access.redhat.com/errata/RHSA-2025:4560 REF https://access.redhat.com/errata/RHSA-2025:4568 REF https://access.redhat.com/errata/RHSA-2025:4609 REF https://access.redhat.com/errata/RHSA-2025:4624 REF https://access.redhat.com/errata/RHSA-2025:7436 REF https://access.redhat.com/errata/RHSA-2025:8292 REF https://access.redhat.com/errata/RHSA-2025:9179 REF https://access.redhat.com/security/cve/CVE-2025-32911 REF https://bugzilla.redhat.com/show_bug.cgi?id=2359355 REF https://gitlab.gnome.org/GNOME/libsoup/-/issues/433 REF https://lists.debian.org/debian-lts-announce/2025/04/msg00036.html

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