CVE-2025-36377: IBM Security QRadar EDR 3.12 through 3.12.23 does not invalidate session after a session expiration which coul

Routine

MEDIUM 6.3UPGRADE

CVE-2025-36377 is a medium-severity flaw (CVSS 6.3) affecting qradar edr. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Security QRadar EDR 3.12 through 3.12.23 does not invalidate session after a session expiration which could allow an authenticated user to impersonate another user on the system.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-613
Published	2026-02-17
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-17 21:22 UTCPublished CVE record published
2026-06-17 09:14 UTCUpdated Record last modified

ibm qradar edr UPGRADE

Affected: >= 3.12.0 and < 3.12.24

Fixed in: 3.12.24

Safe to downgrade to: a release before 3.12.0

1. Check installed version

apt-cache policy qradar-edr || rpm -q qradar-edr || qradar-edr --version

2. UPGRADE to 3.12.24 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade qradar-edr

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade qradar-edr

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.12.0 (Debian / Ubuntu)

apt-cache madison qradar-edr sudo apt install qradar-edr=<VERSION_BEFORE_3.12.0> sudo apt-mark hold qradar-edr

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list qradar-edr sudo dnf downgrade qradar-edr-<VERSION_BEFORE_3.12.0> sudo dnf versionlock add qradar-edr

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-36377?

qradar edr: upgrade to 3.12.24. Exact commands for each OS are on this page.

Is CVE-2025-36377 being exploited?

CVE-2025-36377 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-36377 affect?

CVE-2025-36377 affects qradar edr. Severity is medium (CVSS 6.3). IBM Security QRadar EDR 3.12 through 3.12.23 does not invalidate session after a session expiration which could allow an authenticated user to impersonate another user on the system.

How urgent is CVE-2025-36377?

Priority 25/100. No elevated risk signals yet.

Related CVEs

CVE-2025-36379 MEDIUM 5.9 UPGRADE IBM Security QRadar EDR 3.12 through 3.12.23 IBM Security ReaQta uses weaker than expected cryptographic algor

References

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