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01 Record

CVE-2021-3850

Authentication Bypass by Primary Weakness in adodb/adodb

CriticalPUBLISHEDCNA: @huntrdev
CNA base score9.1 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

02 Description

Authentication Bypass by Primary Weakness in adodb/adodb

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.17% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 82.2% of scored records. A rank, not a probability.
NVD base score
9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-01-25 14:20Z4 YR AGO
Last updated
2024-08-03 17:09Z2 YR AGO
Reserved
2021-10-02
Assigning CNA
@huntrdev
Record state
PUBLISHED
Severity
Critical (CVSS 9.1)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-305Authentication Bypass by Primary WeaknessBase
  • CWE-287Improper AuthenticationClass
Data version
5.1
Document digest
57f93f944f86b480e36bf0e362341ef77fa289466f23941e40ead6e9c0d21843

05 Affected products

VendorProductVersionsPlatforms
adodbadodb/adodb< 5.20.21—

06 References

07 Fixed in

Debian 12

  • libphp-adodb
    Fixed in 5.21.4-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • libphp-adodb
    Fixed in 5.21.4-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • libphp-adodb
    Fixed in 5.21.4-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • libphp-adodb
    Fixed in 5.20.19-1ubuntu0.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • libphp-adodb
    Fixed in 5.20.3-1ubuntu1+esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • libphp-adodb
    Fixed in 5.20.9-1ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • libphp-adodb
    Fixed in 5.20.16-1ubuntu0.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.