CVE-2023-50257Public exploit

Unauthenticated subscriber interruption via forged discovery packets

Published Feb 19, 2024 · Updated Aug 14, 2024

Improper access control in eProsima Fast DDS before 2.13.0 allows remote attackers to disconnect SROS2 subscribers. Participant discovery accepts unencrypted DATA(p[UD]) and GUID values without verifying the sender, so forged disposal data deletes participant state while SecurityManager retains stale identity handles. An unauthenticated attacker on the same RTPS multicast domain can sniff a publisher GUID and stop current and reconnecting subscribers from receiving data.

CVSS severity9.6
Critical
EPSS probability0.48%
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

Improper access control in eProsima Fast DDS before 2.13.0 allows remote attackers to disconnect SROS2 subscribers. Participant discovery accepts unencrypted DATA(p[UD]) and GUID values without verifying the sender, so forged disposal data deletes participant state while SecurityManager retains stale identity handles. An unauthenticated attacker on the same RTPS multicast domain can sniff a publisher GUID and stop current and reconnecting subscribers from receiving data.

The record

CVE
CVE-2023-50257
Published
Feb 19, 2024
Updated
Aug 14, 2024
Vendor
eProsima
Product
Fast DDS
Classifications
CWE-284, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 2024Record 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=0 <2.10.3
  2. Affected versionversion=0 <2.11.3
  3. Affected versionversion=0 <2.12.2
  4. Affected versionversion=0 <2.13.0
  5. Affected versionversion=0 <2.6.7
  6. Affected versionversion=>= 2.11.0, < 2.11.3
  7. Affected versionversion=>= 2.12.0, < 2.12.2
  8. Affected versionversion=< 2.6.7
  9. Affected versionversion=>= 2.7.0, < 2.10.3
  10. Affected versionversion=FastDDS = 2.10.2-2
  11. Affected versionversion=FastDDS = 2.1.4-1
  12. Affected versionversion=FastDDS = 2.3.6-6
  13. Affected versionversion=FastDDS = 2.6.6-1
  14. Affected versionversion=RMW - FastDDS = 1.3.2-1
  15. Affected versionversion=RMW - FastDDS = 5.0.2-1
  16. Affected versionversion=RMW - FastDDS = 6.2.3.1
  17. Affected versionversion=RMW - FastDDS = 7.1.1-2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

eProsima · Fast DDSversion=0 <2.10.3; version=0 <2.11.3; version=0 <2.12.2; version=0 <2.13.0; version=0 <2.6.7; version=>= 2.11.0, < 2.11.3; version=>= 2.12.0, < 2.12.2; version=< 2.6.7; version=>= 2.7.0, < 2.10.3; version=FastDDS = 2.10.2-2; version=FastDDS = 2.1.4-1; version=FastDDS = 2.3.6-6; version=FastDDS = 2.6.6-1; version=RMW - FastDDS = 1.3.2-1; version=RMW - FastDDS = 5.0.2-1; version=RMW - FastDDS = 6.2.3.1; version=RMW - FastDDS = 7.1.1-2

Published CVSS scores

9.6GitHubCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
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