CVE-2022-45871: A Denial-of-Service (DoS) vulnerability was discovered in the fsicapd component used in WithSecure products wh

Routine

MEDIUM 4.3MITIGATE

CVE-2022-45871 is a medium-severity flaw (CVSS 4.3) affecting atlant. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Denial-of-Service (DoS) vulnerability was discovered in the fsicapd component used in WithSecure products whereby the service may crash while parsing ICAP request. The exploit can be triggered remotely by an attacker.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-20
Published	2022-12-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: f-secure

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

Am I affected?

Timeline

2022-12-13 15:15 UTCPublished CVE record published
2026-06-17 05:10 UTCUpdated Record last modified

f-secure atlant MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2022-45871?

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

Is CVE-2022-45871 being exploited?

CVE-2022-45871 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-2022-45871 affect?

CVE-2022-45871 affects atlant. Severity is medium (CVSS 4.3). A Denial-of-Service (DoS) vulnerability was discovered in the fsicapd component used in WithSecure products whereby the service may crash while parsing ICAP request. The exploit can be triggered remotely by an attacker.

How urgent is CVE-2022-45871?

Priority 24/100. No elevated risk signals yet.

Related CVEs

CVE-2023-43767 HIGH 7.5 DOWNGRADE DOWNGRADE Certain WithSecure products allow Denial of Service via the aepack archive unpack handler
CVE-2023-43766 HIGH 7.8 DOWNGRADE DOWNGRADE Certain WithSecure products allow Local privilege escalation via the lhz archive unpack handler
CVE-2023-43765 HIGH 7.5 DOWNGRADE DOWNGRADE Certain WithSecure products allow Denial of Service in the aeelf component
CVE-2023-43761 HIGH 7.5 DOWNGRADE DOWNGRADE Certain WithSecure products allow Denial of Service (infinite loop)
CVE-2022-28887 MEDIUM 4.3 MITIGATE MITIGATE Multiple Denial-of-Service (DoS) vulnerability was discovered in F-Secure & WithSecure products whereby the ae

References

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