CVE-2021-3932: twill is vulnerable to Cross-Site Request Forgery (CSRF)

Q: How do I fix CVE-2021-3932?

twill: upgrade to newer than 2.5.2. Exact commands for each OS are on this page.

Q: Is CVE-2021-3932 being exploited?

CVE-2021-3932 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-3932 affect?

CVE-2021-3932 affects twill. Severity is medium (CVSS 4.3). twill is vulnerable to Cross-Site Request Forgery (CSRF)

Q: How urgent is CVE-2021-3932?

Priority 29/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2021-3932 is a medium-severity flaw (CVSS 4.3) affecting twill. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

twill is vulnerable to Cross-Site Request Forgery (CSRF)

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-352
Published	2021-11-13
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: area17

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

Am I affected?

Timeline

2021-11-13 09:15 UTCPublished CVE record published
2026-06-17 04:06 UTCUpdated Record last modified

area17 twill UPGRADE

Affected: <= 2.5.2

Fixed in: newer than 2.5.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade twill

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade twill

Note

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

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-2021-3932?

twill: upgrade to newer than 2.5.2. Exact commands for each OS are on this page.

Is CVE-2021-3932 being exploited?

CVE-2021-3932 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-2021-3932 affect?

CVE-2021-3932 affects twill. Severity is medium (CVSS 4.3). twill is vulnerable to Cross-Site Request Forgery (CSRF)

How urgent is CVE-2021-3932?

Priority 29/100. Public exploit reference

References

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