CVE-2023-23589

Exp

The SafeSocks option in Tor before 0.4.7.13 has a logic error in which the unsafe SOCKS4 protocol can be used but not the safe SOCKS4a protocol, aka TROVE-2022-002.

Published: 2023-01-13 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-23589 is rated High Exploit Risk (66.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.78%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-23589

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-23589

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-13 0.93% 0.78% -0.15%
2 2026-05-05 0.46% 0.93% +0.47%
3 2026-05-04 — 0.46% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-23589

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 2.5 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-23589

OS Trackers for CVE-2023-23589

vendor priority summary link
alpine — CVE-2023-23589: 1 source package rows (tor); 16 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 16. https://security.alpinelinux.org/vuln/CVE-2023-23589
debian not yet assigned CVE-2023-23589 not yet assigned priority: Debian including 1 source packages (tor), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-23589
gentoo normal CVE-2023-23589: 1 GLSA(s) (202305-11), 1 atom(s) (net-vpn/tor); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-23589
ubuntu medium CVE-2023-23589 medium priority: Ubuntu including 1 source packages (tor), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 6, needs-triage 5, ignored 1, released 1. https://ubuntu.com/security/CVE-2023-23589

Affected software / configurations for CVE-2023-23589

Vendor Product Version Raw CPE
torproject tor < 0.4.7.13 cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
fedoraproject fedora 36 cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
fedoraproject fedora 37 cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

References for CVE-2023-23589

URL Tags
https://gitlab.torproject.org/tpo/core/tor/-/commit/a282145b3634547ab84ccd959d0537c021ff7ffc Patch Vendor Advisory
https://gitlab.torproject.org/tpo/core/tor/-/issues/40730 Exploit Issue Tracking Patch Vendor Advisory
https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.7/ReleaseNotes Release Notes Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00026.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IYOLTP6HQO2HPXUYKOR7P5YYYN7CINQQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMY4FWXYKP3MDXTZ3EJ7XJVGBCKBK2XL/
https://security.gentoo.org/glsa/202305-11
https://www.debian.org/security/2023/dsa-5320 Third Party Advisory
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