CVE-2023-36266
An issue was discovered in Keeper Password Manager for Desktop version 16.10.2, and the...
An issue was discovered in Keeper Password Manager for Desktop version 16.10.2 (fixed in 17.2), and the KeeperFill Browser Extensions version 16.5.4 (fixed in 17.2), allows local attackers to gain sensitive information via plaintext password storage in memory after the user is already logged in, and may persist after logout. NOTE: the vendor disputes this for two reasons: the information is inherently available during a logged-in session when the attacker can read from arbitrary memory locations, and information only remains available after logout because of memory-management limitations of web browsers (not because the Keeper technology itself is retaining the information).
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
5.5
An issue was discovered in Keeper Password Manager for Desktop version 16.10.2 (fixed in 17.2), and the KeeperFill Browser Extensions version 16.5.4 (fixed in 17.2), allows local attackers to gain sensitive information via plaintext password storage in memory after the user is already logged in, and may persist after logout. NOTE: the vendor disputes this for two reasons: the information is inherently available during a logged-in session when the attacker can read from arbitrary memory locations, and information only remains available after logout because of memory-management limitations of web browsers (not because the Keeper technology itself is retaining the information).
- Record
CVE-2023-36266- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-522
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in Keeper Password Manager for Desktop version 16.10.2 (fixed in 17.2), and the KeeperFill Browser Extensions version 16.5.4 (fixed in 17.2), allows local attackers to gain sensitive information via plaintext password storage in memory after the user is already logged in, and may persist after logout. NOTE: the vendor disputes this for two reasons: the information is inherently available during a logged-in session when the attacker can read from arbitrary memory locations, and information only remains available after logout because of memory-management limitations of web browsers (not because the Keeper technology itself is retaining the information).
- Record
CVE-2023-36266- Updated
- 2026-11-02
EUVDEUVD-2023-40237 No score
An issue was discovered in Keeper Password Manager for Desktop version 16.10.2 (fixed in 17.2), and the KeeperFill Browser Extensions version 16.5.4 (fixed in 17.2), allows local attackers to gain sensitive information via plaintext password storage in memory after the user is already logged in, and may persist after logout. NOTE: the vendor disputes this for two reasons: the information is inherently available during a logged-in session when the attacker can read from arbitrary memory locations, and information only remains available after logout because of memory-management limitations of web browsers (not because the Keeper technology itself is retaining the information).
- Record
EUVD-2023-40237- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qxpv-rxq7-rg72
5.5
An issue was discovered in Keeper Password Manager for Desktop version 16.10.2, and the...
An issue was discovered in Keeper Password Manager for Desktop version 16.10.2, and the KeeperFill Browser Extensions version 16.5.4, allows local attackers to gain sensitive information via plaintext password storage in memory after the user is already logged in, and may persist after logout.
- Record
GHSA-qxpv-rxq7-rg72- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-522
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Keeper Security desktop 16.10.2 & Browser Extension 16.5.4 - Password Dumping | 2023-07-28 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-36266 is a medium vulnerability (CVSS 5.5) in Keepersecurity Keeper, published July 12, 2023. Its validity is disputed. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile.
References
harkenzo.tlstickle.com/2023-06-12-Keeper-Password-Dumping
packetstormsecurity.com/files/173809/Keeper-Security-Desktop-16.10.2-Browser-Extension-16.5.4-Password-Dumper.html
docs.keeper.io/en/release-notes/desktop/web-vault-+-desktop-app/vault-release-17.2
docs.keeper.io/en/enterprise-guide/keeper-forcefield
nvd.nist.gov/vuln/detail/CVE-2023-36266
github.com/advisories/GHSA-qxpv-rxq7-rg72