CVE-2025-65797: Incorrect access control in the Identity Provider service of usememos memos v0.25.2 allows attackers with low-

Routine

MEDIUM 6.5DOWNGRADE

CVE-2025-65797 is a medium-severity flaw (CVSS 6.5) affecting memos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incorrect access control in the Identity Provider service of usememos memos v0.25.2 allows attackers with low-level privileges to arbitrarily modify or delete registered identity providers, leading to an account takeover or Denial of Service (DoS).

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-12-08
Last modified	2026-10-15

Publisher (CNA): MITRE · Vendor: usememos

Last updated 2026-10-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-08 17:16 UTCPublished CVE record published
2026-10-15 20:10 UTCUpdated Record last modified

usememos memos DOWNGRADE

Affected: 0.25.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.25.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.25.2 (Debian / Ubuntu)

apt-cache madison memos sudo apt install memos=<VERSION_BEFORE_0.25.2> sudo apt-mark hold memos

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list memos sudo dnf downgrade memos-<VERSION_BEFORE_0.25.2> sudo dnf versionlock add memos

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-65797?

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

Is CVE-2025-65797 being exploited?

CVE-2025-65797 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-2025-65797 affect?

CVE-2025-65797 affects memos. Severity is medium (CVSS 6.5). Incorrect access control in the Identity Provider service of usememos memos v0.25.2 allows attackers with low-level privileges to arbitrarily modify or delete registered identity providers, leading to an account takeover or Denial of Servic

How urgent is CVE-2025-65797?

Priority 33/100. Public exploit reference

Related CVEs

CVE-2025-65798 MEDIUM 5.4 DOWNGRADE Incorrect access control in usememos memos v0.25.2 allows attackers with low-level privileges to arbitrarily m
CVE-2025-65796 MEDIUM 4.3 DOWNGRADE Incorrect access control in usememos memos v0.25.2 allows attackers with low-level privileges to arbitrarily d
CVE-2025-65799 MEDIUM 4.3 DOWNGRADE A lack of file name validation or verification in the Attachment service of usememos memos v0.25.2 allows atta
CVE-2025-65795 HIGH 7.5 DOWNGRADE Incorrect access control in the /api/v1/user endpoint of usememos memos v0.25.2 allows unauthorized attackers
CVE-2024-21635 HIGH 7.5 UPGRADE Memos is a privacy-first, lightweight note-taking service that uses Access Tokens to authenticate application

References

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