USN-8228-1: exim4 Ubuntu

CVSS: UnknownPublished
Published 04-05-2026Last modified 20-05-2026
Open JSON

Vulnerability summary

USN-8228-1 is a vulnerability in exim4 Ubuntu with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 3
CVE-2026-40685CVE-2026-40686CVE-2026-40687

Timeline

  1. 04-05-2026
    PublishedVulnerability first disclosed.
  2. 20-05-2026
    Last modifiedVulnerability information updated.

Description

exim4 vulnerabilities It was discovered that Exim incorrectly handled parsing malformed JSON in message headers. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-40685) It was discovered that Exim incorrectly handled processing of UTF-8 trailing characters. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-40686) It was discovered that Exim incorrectly handled SPA authenticator input. An authenticated user could possibly use this issue to execute arbitrary code. (CVE-2026-40687)

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • exim4< 4.95-4ubuntu2.7 | < 4.97-4ubuntu4.4 | < 4.98.2-1ubuntu2.1 | < 4.99.1-1ubuntu1.1

1 vendor · 1 product

References

4 links