CyberSecBulletin
CVE-2024-8069Exploited in the wildNVD status: Analyzed

Citrix Session Recording Deserialization of Untrusted Data

CVE-2024-8069 is a high-severity deserialization of untrusted data vulnerability in Citrix Session Recording, with a CVSS 3.1 base score of 8.0 out of 10. It can be exploited from the same local network by an attacker with a low-privileged account, without any action from a user. The record lists versions 24.5.200.8, CU9 hotfix 19.12.9100.6, CU5 hotfix 22.03.5100.11 as the first without the flaw, so updating Citrix Session Recording to one of those releases or later removes the exposure. CISA added it to the Known Exploited Vulnerabilities catalogue on August 25, 2025, which means attacks have been observed in the wild.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Update Citrix Session Recording to 24.5.200.8 or CU9 hotfix 19.12.9100.6 or CU5 hotfix 22.03.5100.11 or CU1 hotfix 24.02.1200.16, whichever matches your release line, or a later version.
  2. Update Session Recording to 2407 or a later version.
  3. CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  4. Read the advisory on support.citrix.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
Citrix Session RecordingCitrix Session Recording2407 Current Release up to, but not including, 24.5.200.8; 1912 LTSR up to, but not including, CU9 hotfix 19.12.9100.6; 2203 LTSR up to, but not including, CU5 hotfix 22.03.5100.11; 2402 LTSR up to, but not including, CU1 hotfix 24.02.1200.1624.5.200.8, CU9 hotfix 19.12.9100.6, CU5 hotfix 22.03.5100.11, CU1 hotfix 24.02.1200.16
CitrixSession Recordingbefore 2407; 1912; 2203; 2402; 24072407

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
AdjacentThe attacker must be on the same local network segment.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 4.05.1MediumCNA (citrix.com)
CVSS 3.18.0HighNVD

Official description

Limited remote code execution with privilege of a NetworkService Account access in Citrix Session Recording if the attacker is an authenticated user on the same intranet as the session recording server

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

How developers prevent this class of flaw

  • If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
  • When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
  • Explicitly define a final object() to prevent deserialization.

More Deserialization of Untrusted Data vulnerabilities (CWE-502)

Timeline

  1. CVE record published.
  2. Added to CISA's Known Exploited Vulnerabilities catalogue.
  3. CISA published its SSVC assessment (exploitation: active, automatable: no, technical impact: total).
  4. Deadline for US federal agencies to remediate, set by CISA.
  5. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Recent Deserialization of Untrusted Data vulnerabilities

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