CVE-2020-10593

mediumpriority · track · 31EPSS 0.023 · 84 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.34% (84th) EPSS

CVSS 5 · medium

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (memory leak), aka TROVE-2020-004. This occurs in circpad_setup_machine_on_circ because a circuit-padding machine can be negotiated twice on the same circuit.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-401USprimary

affected products (8)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
opensuse backports sle= 15.0nvdUScpe:2.3:a:opensuse:backports_sle:*:*:*:*:*:*:*:*
opensuse leap= 15.1nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
torproject tor≤ 0.4.2.7nvdUScpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
torproject tor< 0.4.1.9nvdUScpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
torproject tor0.3.5 → 0.3.5.10nvdUScpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
torproject tor0.4.1.0 → 0.4.1.9nvdUScpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
torproject tor0.4.2.0 → 0.4.2.7nvdUScpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-03-23modified 2026-06-17

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references (17)

External citations — patches, advisories, analysis.

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