[UPDATE] [medium] Netty: Multiple vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities can be exploited by a remote, anonymous attacker to bypass security measures, manipulate data, disclose information, or cause denial of service.

Who is affected

Deployments of Netty.

Urgency

Medium urgency due to the variety of potential impacts including data manipulation and denial of service.

Action

Apply the latest patches for Netty to address these vulnerabilities.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

medium

Published

2026-07-10

Exploitation

Not in CISA KEV at last sync

Language

Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1372

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-414170.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all scored CVEs.
• Low exploitation riskCVE-2026-425770.41% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all scored CVEs.
• Low exploitation riskCVE-2026-425780.93% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all scored CVEs.
• Low exploitation riskCVE-2026-425790.94% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 57% of all scored CVEs.
• Low exploitation riskCVE-2026-425800.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all scored CVEs.
• Low exploitation riskCVE-2026-425810.59% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all scored CVEs.
• Low exploitation riskCVE-2026-425820.44% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all scored CVEs.
• Low exploitation riskCVE-2026-425830.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all scored CVEs.
• Low exploitation riskCVE-2026-425840.73% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all scored CVEs.
• Low exploitation riskCVE-2026-425850.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• high[NEW] [high] IBM Operational Decision Manager: Multiple vulnerabilitiescert-bund
• high[UPDATE] [high] Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira and Jira Service Management: …cert-bund
• unknownMultiple vulnerabilities in IBM products (June 26, 2026)cert-fr-avis

Recent advisories for Netty

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• high[UPDATE] [high] Netty: Multiple vulnerabilitiescert-bund · 2026-07-10
• mediumCVE-2026-49365: Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel Net…nvd · 2026-07-06
• medium[UPDATE] [medium] Netty: Multiple vulnerabilitiescert-bund · 2026-07-02
• highGHSA-h2qv-fj59-j46j: Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Mem…ghsa · 2026-06-11
• mediumGHSA-c2gf-v879-257j: netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Le…ghsa · 2026-06-11
• highGHSA-6jv9-x5w9-2ccm: Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregatorghsa · 2026-06-11

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