CVE-2024-5675: Untrusted data deserialization vulnerability has been found in Mentor - Employee Portal, affecting version 3.8

This month

CRITICAL 10.0REMOTEDOWNGRADE

CVE-2024-5675 is a critical-severity flaw (CVSS 10.0) affecting mentor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Untrusted data deserialization vulnerability has been found in Mentor - Employee Portal, affecting version 3.83.35. This vulnerability could allow an attacker to execute arbitrary code, by injecting a malicious payload into the “ViewState” field.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-502
Published	2024-06-06
Last modified	2026-06-17

Publisher (CNA): Spanish National Cybersecurity Institute, S.A. (INCIBE) · Vendor: summar

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

Am I affected?

Timeline

2024-06-06 13:15 UTCPublished CVE record published
2026-06-17 08:16 UTCUpdated Record last modified

summar mentor DOWNGRADE

Affected: 3.83.35

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.83.35

1. Check installed version

apt-cache policy mentor || rpm -q mentor || mentor --version

2. No fixed release: DOWNGRADE to a release before 3.83.35 (Debian / Ubuntu)

apt-cache madison mentor sudo apt install mentor=<VERSION_BEFORE_3.83.35> sudo apt-mark hold mentor

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mentor sudo dnf downgrade mentor-<VERSION_BEFORE_3.83.35> sudo dnf versionlock add mentor

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-2024-5675?

mentor: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-5675 being exploited?

CVE-2024-5675 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-2024-5675 affect?

CVE-2024-5675 affects mentor. Severity is critical (CVSS 10.0). Untrusted data deserialization vulnerability has been found in Mentor - Employee Portal, affecting version 3.83.35. This vulnerability could allow an attacker to execute arbitrary code, by injecting a malicious payload into the “ViewState”

How urgent is CVE-2024-5675?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

References

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