CVE-2025-62236: The Frontier Airlines website has a publicly available endpoint that validates if an email addresses is associ

Routine

MEDIUM 5.3REMOTEMITIGATE

CVE-2025-62236 is a medium-severity flaw (CVSS 5.3) affecting frontier airlines. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Frontier Airlines website has a publicly available endpoint that validates if an email addresses is associated with an account. An unauthenticated, remote attacker could determine valid email addresses, possibly aiding in further attacks.

Why this priority

Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-204
Published	2025-10-23
Last modified	2026-10-08

Publisher (CNA): Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government · Vendor: flyfrontier

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-23 20:15 UTCPublished CVE record published
2026-10-08 11:10 UTCUpdated Record last modified

flyfrontier frontier airlines 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 frontier-airlines || rpm -q frontier-airlines || frontier-airlines --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-2025-62236?

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

Is CVE-2025-62236 being exploited?

CVE-2025-62236 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-2025-62236 affect?

CVE-2025-62236 affects frontier airlines. Severity is medium (CVSS 5.3). The Frontier Airlines website has a publicly available endpoint that validates if an email addresses is associated with an account. An unauthenticated, remote attacker could determine valid email addresses, possibly aiding in further attack

How urgent is CVE-2025-62236?

Priority 30/100. Remotely exploitable, no login, no user action

References

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