CVE-2026-44905Public exploitNetwork attack vector

Process termination via uncaught OER encoding exception

Published May 26, 2026 · Updated May 26, 2026

Uncaught exception handling in Vanetza 26.02 and earlier allows remote attackers to terminate the process with a crafted V2X packet. StraightVerifyService re-encodes a signing certificate without catching the runtime error raised when its Psid subtype violates OER semantic constraints. A single unauthenticated packet reaches this path before signature verification, causing an immediate process crash without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Uncaught exception handling in Vanetza 26.02 and earlier allows remote attackers to terminate the process with a crafted V2X packet. StraightVerifyService re-encodes a signing certificate without catching the runtime error raised when its Psid subtype violates OER semantic constraints. A single unauthenticated packet reaches this path before signature verification, causing an immediate process crash without reported data disclosure or modification.

The record

CVE
CVE-2026-44905
Published
May 26, 2026
Updated
May 26, 2026
Vendor
Raphael Riebl
Product
Vanetza
Classifications
CWE-248, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 26, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 26.02
  2. Affected versionversion=< e1a2e2709210d309458c3d77f98d50dec26c0df0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Raphael Riebl · Vanetzaversion=<= 26.02; version=< e1a2e2709210d309458c3d77f98d50dec26c0df0

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-248Uncaught Exception
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo