synced 1 MIN AGO
01 Record

CVE-2025-4948

Libsoup: integer underflow in soup_multipart_new_from_message() leading to denial of service in libsoup

HighPUBLISHEDCNA: redhat
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
View raw JSON

02 Description

Libsoup: integer underflow in soup_multipart_new_from_message() leading to denial of service in libsoup

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.81% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 56.6% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-06-30.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-05-19 15:55Z1 YR AGO
Last updated
2026-06-30 14:27Z4 MO AGO
Reserved
2025-05-19
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-191Integer Underflow (Wrap or Wraparound)Base
Data version
5.2
Document digest
06c39ef940d46bb08d6bcc308fff5dc598a460397dd8c6ea0f44be5ccc5c4dc2

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat Enterprise Linux 10Not specified—
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle SupportNot specified—
Red HatRed Hat Enterprise Linux 8Not specified—
Red HatRed Hat Enterprise Linux 8.2 Advanced Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update ServiceNot specified—
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 8.8 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 9Not specified—
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 9.2 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 9.4 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 6Not specified—

06 References

07 Fixed in

AlmaLinux 8

  • libsoup
    Fixed in 2.62.3-9.el8_10
  • libsoup-devel
    Fixed in 2.62.3-9.el8_10

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • libsoup
    Fixed in 2.72.0-10.el9_6.2
  • libsoup-devel
    Fixed in 2.72.0-10.el9_6.2

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • libsoup3-doc
    Fixed in 3.6.5-3.el10_0.6

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • libsoup
    Fixed in 2.62.3-9.el8_10
  • libsoup-devel
    Fixed in 2.62.3-9.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • libsoup
    Fixed in 2.72.0-10.el9_6.2
  • libsoup-devel
    Fixed in 2.72.0-10.el9_6.2

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • libsoup3-doc
    Fixed in 3.6.5-3.el10_0.6

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • libsoup2.4
    No fix yet
  • libsoup3
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • libsoup2.4
    No fix yet
  • libsoup3
    Fixed in 3.6.5-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • libsoup3
    Fixed in 3.6.5-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • libsoup2.4
    Fixed in 2.74.2-3ubuntu0.6

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • libsoup2.4
    Fixed in 2.74.3-6ubuntu1.6
  • libsoup3
    Fixed in 3.4.4-5ubuntu0.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • libsoup2.4
    Fixed in 2.74.3-10.1ubuntu4
  • libsoup3
    Fixed in 3.6.5-3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • libsoup2.4
    Fixed in 2.74.3-10.1ubuntu4

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • libsoup2.4
    Fixed in 2.52.2-1ubuntu0.3+esm5
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • libsoup2.4
    Fixed in 2.62.1-1ubuntu0.4+esm6
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • libsoup2.4
    Fixed in 2.70.0-1ubuntu0.5+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 22.04 LTS

  • libsoup3
    Fixed in 3.0.7-0ubuntu1+esm5
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.