CVE catalog
CVE-2021-28235
etcd: CVE-2021-28235
- Severity
- Critical · CVSS 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.62% · Oct 25, 2026
Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | etcd | sid | 3.5.30-2 | fixed |
| Debian | etcd | forky | 3.5.30-2 | fixed |
| Debian | etcd | trixie | 3.5.16-4 | fixed |
| Debian | etcd | bookworm | 3.4.23-4 | vulnerable |
| Ubuntu | etcd | pro | 3.3.25+dfsg-6 | vulnerable |
| Ubuntu | etcd | pro | 3.3.25+dfsg-7 | vulnerable |
| Ubuntu | etcd | pro | 3.3.25+dfsg-7ubuntu0.22.04.1 | vulnerable |
| Ubuntu | etcd | pro | 3.3.25+dfsg-7ubuntu0.22.04.1+esm1 | fixed |
| Opensuse | etcd-for-k8s1.25 | tumbleweed | 3.5.9-1.1 | fixed |
| Opensuse | etcd-for-k8s1.26 | tumbleweed | 3.5.9-1.1 | fixed |
| Opensuse | etcd | tumbleweed | 3.5.8-1.1 | fixed |
| Opensuse | etcd-for-k8s1.27 | tumbleweed | 3.5.9-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | etcd | source | sid | 3.4.30-1 | not yet assigned | Not reported | [1034840] |
| Debian | etcd | source | forky | 3.4.30-1 | not yet assigned | Not reported | [1034840] |
| Debian | etcd | source | trixie | 3.4.30-1 | not yet assigned | Not reported | [1034840] |
| Debian | etcd | source | bookworm | (unfixed) | not yet assigned | Not reported | [1034840] |
| Ubuntu | etcd | deb | pro | 3.3.25+dfsg-7ubuntu0.22.04.1+esm1 | Not reported | USN-6189-1 | Not reported |
| Opensuse | etcd-for-k8s1.25 | rpm | tumbleweed | 3.5.9-1.1 | Not reported | OPENSUSE-SU-2024:13369-1 | Not reported |
| Opensuse | etcd-for-k8s1.26 | rpm | tumbleweed | 3.5.9-1.1 | Not reported | OPENSUSE-SU-2024:13370-1 | Not reported |
| Opensuse | etcd | rpm | tumbleweed | 3.5.8-1.1 | Not reported | OPENSUSE-SU-2024:12896-1 | Not reported |
| Opensuse | etcd-for-k8s1.27 | rpm | tumbleweed | 3.5.9-1.1 | Not reported | OPENSUSE-SU-2024:13371-1 | Not reported |
Notes
[bookworm] etcd: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [etcd-client]Affected
Source package: [etcd]
Details (2)
3.4.23-4+b4· amd64 · bookwormAffected
dsa · etcd · debian · bookworm; dsa · etcd · debian · 12
3.4.23-4+b4· arm64 · bookwormAffected
dsa · etcd · debian · bookworm; dsa · etcd · debian · 12
- [etcd-server]Affected
Source package: [etcd]
Details (2)
3.4.23-4+b4· amd64 · bookwormAffected
dsa · etcd · debian · bookworm; dsa · etcd · debian · 12
3.4.23-4+b4· arm64 · bookwormAffected
dsa · etcd · debian · bookworm; dsa · etcd · debian · 12
- [golang-etcd-server-dev]Affected
Source package: [etcd]
Details (2)
3.4.23-4· all · bookwormAffected
dsa · etcd · debian · bookworm; dsa · etcd · debian · 12
3.4.23-4· all · bookwormAffected
dsa · etcd · debian · bookworm; dsa · etcd · debian · 12
[openSUSE Tumbleweed]
- [etcdctl]Unknown
Source package: [etcd]
Details (1)
3.7.1-1.2· x86_64 · tumbleweedUnknown · Fixed:
3.5.8-1.1Version impact unknown
dsa · etcd · opensuse · tumbleweed
- [etcdutl]Unknown
Source package: [etcd]
Details (1)
3.7.1-1.2· x86_64 · tumbleweedUnknown · Fixed:
3.5.8-1.1Version impact unknown
dsa · etcd · opensuse · tumbleweed
- [etcd]Fixed
Source package: [etcd]
Details (1)
3.7.1-1.2· x86_64 · tumbleweedFixed · Fixed:
3.5.8-1.1dsa · etcd · opensuse · tumbleweed
[Debian 13 (Trixie)]
- [etcd-client]Fixed
Source package: [etcd]
Details (2)
3.5.16-4· amd64 · trixieFixed · Fixed:
3.4.30-1dsa · etcd · debian · 13
3.5.16-4· arm64 · trixieFixed · Fixed:
3.4.30-1dsa · etcd · debian · 13
- [etcd-server]Fixed
Source package: [etcd]
Details (2)
3.5.16-4· amd64 · trixieFixed · Fixed:
3.4.30-1dsa · etcd · debian · 13
3.5.16-4· arm64 · trixieFixed · Fixed:
3.4.30-1dsa · etcd · debian · 13
- [golang-etcd-server-dev]Fixed
Source package: [etcd]
Details (2)
3.5.16-4· all · trixieFixed · Fixed:
3.4.30-1dsa · etcd · debian · 13
3.5.16-4· all · trixieFixed · Fixed:
3.4.30-1dsa · etcd · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2024_3656-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-28235]
- [https://osv.dev/vulnerability/USN-6189-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12896-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:13369-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:13370-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:13371-1]
- [https://security-tracker.debian.org/tracker/CVE-2021-28235]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-28235.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1373.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]