medium Known exploitedREV. 01

CVE-2024-20481Cisco ASA and FTD — remote access service exhausts resources

The remote access service in Cisco's security appliance software (ASA, FTD) does not release resources when it should, so an unauthenticated attacker can exhaust them and take the service down.

YOUR NEXT MOVE

Apply Cisco advisory cisco-sa-asaftd-bf-dos-vDZhLqrW now; it surfaced during a password-spraying campaign, so also review sign-in attempt volume.

Read the risk

THE VITAL STATS
CVSS score
5.8/ 10
CVSS v3.1
EPSS probability
16%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2024-10-23
Added to KEV
2024-10-24
Exploit published
Not recorded
Confidence
high
Kill chain
impact
MITRE ATT&CK
—
Severity
medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Attacker needsNetwork access to the remote access service; no credentials needed.

Behind the card

3 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2024-20481 · CRDS 0.1 · Issued 2026-09-24