PT-2025-35822 · Netty+6 · Netty+6

Yawkat · Published 2025-09-03 · Updated 2026-06-04 · CVE-2025-58057

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Netty versions 4.1.124.Final and below Netty versions 4.2.4.Final and below

Description Netty is an asynchronous event-driven network application framework. Certain decompression decoders, including BrotliDecoder, can allocate a large number of byte buffers when provided with specially crafted input, potentially leading to a denial of service. The decompress function within BrotliDecoder repeatedly calls pull, decompressing data in 64KB chunks, and the resulting buffers remain reachable until an out-of-memory (OOM) error occurs.

Recommendations Update to Netty version 4.1.125.Final or later. Update to Netty version 4.2.5.Final or later.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

CWE-409

Related Identifiers

ALT-PU-2025-12309

ALT-PU-2025-13422

BDU:2025-12594

CLEANSTART-2026-DD05788

CLEANSTART-2026-GH89210

CLEANSTART-2026-GQ14179

CLEANSTART-2026-IA43044

CLEANSTART-2026-JU62349

CLEANSTART-2026-JW30455

CLEANSTART-2026-KM27583

CLEANSTART-2026-KU61465

CLEANSTART-2026-LE11246

CLEANSTART-2026-MM00120

CLEANSTART-2026-RN56220

CLEANSTART-2026-SP91806

CLEANSTART-2026-SQ91016

CLEANSTART-2026-SV95049

CLEANSTART-2026-VH41554

CLEANSTART-2026-WG59699

CLEANSTART-2026-WK99982

CVE-2025-58057

ECHO-5B70-97C8-C749

GHSA-3P8M-J85Q-PGMJ

OPENSUSE-SU-2025:15520-1

SUSE-SU-2025:03114-1

SUSE-SU-2025_03114-1

USN-7918-1

Affected Products

Alt Linux

Debian

Linuxmint

Netty

Red Os

Suse

Ubuntu

References · 433

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58057.json · Exploit
• https://github.com/netty/netty/security/advisories/GHSA-3p8m-j85q-pgmj · Vendor Advisory
• https://github.com/netty/netty/commit/9d804c54ce962408ae6418255a83a13924f7145d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-41249 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-29025 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-1320 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-44248 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-58057 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-4516 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-38820 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42579 · Security Note
• https://osv.dev/vulnerability/GHSA-3p8m-j85q-pgmj · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-40167 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-3509 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42586 · Security Note