CVE-2021-37697: tmerc-cogs are a collection of open source plugins for the Red Discord bot

Q: How do I fix CVE-2021-37697?

tmerc-cogs: upgrade to 3.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-37697 being exploited?

CVE-2021-37697 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-2021-37697 affect?

CVE-2021-37697 affects tmerc-cogs. Severity is high (CVSS 7.1). tmerc-cogs are a collection of open source plugins for the Red Discord bot. A vulnerability has been found in the code that allows any user to access sensitive information by crafting a specific membership event message. Issue is patched in

Routine

HIGH 7.1UPGRADE

CVE-2021-37697 is a high-severity flaw (CVSS 7.1) affecting tmerc-cogs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

tmerc-cogs are a collection of open source plugins for the Red Discord bot. A vulnerability has been found in the code that allows any user to access sensitive information by crafting a specific membership event message. Issue is patched in commit d63c49b4cfc30c795336e4fff08cba3795e0fcc0. As a workaround users may unload the Welcome cog.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-306
Published	2021-08-11
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: tmerc-cogs project

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

Am I affected?

Timeline

2021-08-11 23:15 UTCPublished CVE record published
2026-06-17 04:01 UTCUpdated Record last modified

tmerc-cogs project tmerc-cogs UPGRADE

Affected: < 3.0

Fixed in: 3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy tmerc-cogs || rpm -q tmerc-cogs || tmerc-cogs --version

2. UPGRADE to 3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tmerc-cogs

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tmerc-cogs

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-2021-37697?

tmerc-cogs: upgrade to 3.0. Exact commands for each OS are on this page.

Is CVE-2021-37697 being exploited?

CVE-2021-37697 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-2021-37697 affect?

CVE-2021-37697 affects tmerc-cogs. Severity is high (CVSS 7.1). tmerc-cogs are a collection of open source plugins for the Red Discord bot. A vulnerability has been found in the code that allows any user to access sensitive information by crafting a specific membership event message. Issue is patched in

How urgent is CVE-2021-37697?

Priority 38/100. High severity

Software pages

Discord vulnerabilities

Related CVEs

CVE-2021-37696 HIGH 7.1 UPGRADE tmerc-cogs are a collection of open source plugins for the Red Discord bot

References

← Back to latest CVEs