CVE-2020-13398

HIGHNVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: LOW) published 2022-05-24. NVD baseline CVSS 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.3%CVSS: 8.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) write vulnerability has been detected in crypto_rsa_common in libfreerdp/crypto/crypto.c.

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
43
EG Risk 43/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity83% × 45%
Exploitation2% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
2.3%
EPSS %ILE
82nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 22, 2020

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Sep 6, 2026
Patch available. Sources: github_commit.
github_commit

commit 8305349a943c (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit 8305349a943c — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/8305349a943c68b1bc8c158f431dc607655aadea
generic Patch Available

[SECURITY] [DLA 3606-1] freerdp2 security update

https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
generic Patch Available

[SECURITY] [DLA 2356-1] freerdp security update

https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html
generic

Comparing 2.1.0...2.1.1 · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/compare/2.1.0...2.1.1
github_commit

commit 8fb6336a4072 (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit 8fb6336a4072 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/8fb6336a4072abcee8ce5bd6ae91104628c7bb69

Vendor Advisories for CVE-2020-13398(5)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(8)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuwinpr-utils (2.1.1+dfsg1-0ubuntu0.20.04.1) @ focal2026-05-27ubuntu
ubuntulibxfreerdp-client1.1 (1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4) @ xenial2026-05-27ubuntu
ubuntulibxfreerdp-client1.1 (1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2) @ bionic2026-05-27ubuntu
redhatfreerdp-2:2.0.0-46.rc4.el8_0.22020-06-08redhat
redhatfreerdp-2:2.0.0-46.rc4.el8_1.22020-06-08redhat
redhatfreerdp-0:2.0.0-4.rc4.el7_8.12020-06-05redhat
redhatfreerdp-0:1.0.2-7.el6_102020-06-04redhat
redhatfreerdp-2:2.0.0-46.rc4.el8_2.22020-06-04redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp22.0.0~git20190204.1.2693389a+dfsg1-1 ... 2.3.0+dfsg1-2 (13 versions)
  • every version up to 2.3.0+dfsg1-2+deb10u3: fixed in 2.3.0+dfsg1-2+deb10u3
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp2—
  • every version up to 2.1.1+dfsg1-1: fixed in 2.1.1+dfsg1-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp2—
  • every version up to 2.1.1+dfsg1-1: fixed in 2.1.1+dfsg1-1
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp1.1.0~git20140921.1.440916e+dfsg1-13, 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u1, 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u2, 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u3
  • every version up to 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u4: fixed in 1.1.0~git20140921.1.440916e+dfsg1-13+deb9u4
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 165 total refreshes for this CVE.

  1. 2026-10-05 17:39 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:22 UTCEPSS rescore
  4. 2026-09-30 15:10 UTCEG score recompute
  5. 2026-09-30 14:59 UTCEPSS rescore
  6. 2026-09-27 13:40 UTCEPSS rescore
  7. 2026-09-27 02:45 UTCOSV refresh
  8. 2026-09-26 15:54 UTCEPSS rescore
  9. 2026-09-26 00:20 UTCEPSS rescore
  10. 2026-09-24 13:59 UTCEPSS rescore
  11. 2026-09-22 14:43 UTCEPSS rescore
  12. 2026-09-21 20:28 UTCEPSS rescore
  13. 2026-09-20 20:11 UTCEPSS rescore
  14. 2026-09-19 15:37 UTCEPSS rescore
  15. 2026-09-18 19:23 UTCEPSS rescore
  16. 2026-09-17 19:22 UTCEPSS rescore
  17. 2026-09-16 14:04 UTCEPSS rescore
  18. 2026-09-16 14:04 UTCEPSS rescore
  19. 2026-09-15 03:06 UTCEPSS rescore
  20. 2026-09-13 16:42 UTCEPSS rescore
  21. 2026-09-12 14:56 UTCEPSS rescore
  22. 2026-09-11 14:48 UTCEPSS rescore
  23. 2026-09-11 09:32 UTCEPSS rescore
  24. 2026-09-07 15:57 UTCEPSS rescore
  25. 2026-09-07 12:17 UTCOSV refresh
Show 75 more
  1. 2026-09-06 13:44 UTCEPSS rescore
  2. 2026-09-05 15:24 UTCEPSS rescore
  3. 2026-09-04 13:56 UTCEPSS rescore
  4. 2026-09-04 05:03 UTCEPSS rescore
  5. 2026-09-02 14:08 UTCEPSS rescore
  6. 2026-09-01 03:32 UTCEPSS rescore
  7. 2026-08-30 19:14 UTCEPSS rescore
  8. 2026-08-30 01:18 UTCEPSS rescore
  9. 2026-08-28 21:37 UTCEPSS rescore
  10. 2026-08-27 14:21 UTCEPSS rescore
  11. 2026-08-26 14:42 UTCEPSS rescore
  12. 2026-08-25 13:45 UTCEPSS rescore
  13. 2026-08-20 22:51 UTCEPSS rescore
  14. 2026-08-20 21:01 UTCOSV refresh
  15. 2026-08-19 17:00 UTCEPSS rescore
  16. 2026-08-18 13:44 UTCEPSS rescore
  17. 2026-08-17 13:43 UTCEPSS rescore
  18. 2026-08-16 14:52 UTCEPSS rescore
  19. 2026-08-16 02:11 UTCEPSS rescore
  20. 2026-08-15 01:26 UTCEPSS rescore
  21. 2026-08-13 21:57 UTCEPSS rescore
  22. 2026-08-12 13:47 UTCEPSS rescore
  23. 2026-08-09 13:43 UTCEPSS rescore
  24. 2026-08-08 16:33 UTCEPSS rescore
  25. 2026-08-07 16:23 UTCEPSS rescore
  26. 2026-08-06 13:43 UTCEPSS rescore
  27. 2026-08-05 19:14 UTCEPSS rescore
  28. 2026-08-05 13:11 UTCOSV refresh
  29. 2026-08-04 15:06 UTCEPSS rescore
  30. 2026-08-04 10:34 UTCEPSS rescore
  31. 2026-08-03 10:32 UTCEPSS rescore
  32. 2026-08-02 02:23 UTCEPSS rescore
  33. 2026-08-01 04:12 UTCEPSS rescore
  34. 2026-07-30 16:24 UTCEPSS rescore
  35. 2026-07-30 01:27 UTCEPSS rescore
  36. 2026-07-28 15:32 UTCEPSS rescore
  37. 2026-07-26 14:51 UTCEPSS rescore
  38. 2026-07-25 14:14 UTCEPSS rescore
  39. 2026-07-24 14:14 UTCEPSS rescore
  40. 2026-07-23 14:15 UTCEPSS rescore
  41. 2026-07-23 14:15 UTCEPSS rescore
  42. 2026-07-23 01:49 UTCEG score recompute
  43. 2026-07-22 22:34 UTCEG score recompute
  44. 2026-07-22 14:05 UTCEPSS rescore
  45. 2026-07-21 15:22 UTCEPSS rescore
  46. 2026-07-21 15:22 UTCEPSS rescore
  47. 2026-07-20 17:04 UTCEPSS rescore
  48. 2026-07-19 14:28 UTCEPSS rescore
  49. 2026-07-19 14:28 UTCEPSS rescore
  50. 2026-07-19 12:00 UTCOSV refresh
  51. 2026-07-19 02:26 UTCEPSS rescore
  52. 2026-07-19 02:26 UTCEPSS rescore
  53. 2026-07-18 10:02 UTCEPSS rescore
  54. 2026-07-16 16:59 UTCEPSS rescore
  55. 2026-07-16 16:59 UTCEPSS rescore
  56. 2026-07-15 16:55 UTCEPSS rescore
  57. 2026-07-13 22:27 UTCEPSS rescore
  58. 2026-07-13 06:10 UTCEPSS rescore
  59. 2026-07-13 06:10 UTCEPSS rescore
  60. 2026-07-12 05:44 UTCEPSS rescore
  61. 2026-07-11 08:24 UTCEPSS rescore
  62. 2026-07-09 19:06 UTCEPSS rescore
  63. 2026-07-08 15:11 UTCEPSS rescore
  64. 2026-07-07 13:43 UTCEPSS rescore
  65. 2026-07-06 16:25 UTCEPSS rescore
  66. 2026-07-06 16:25 UTCEPSS rescore
  67. 2026-07-06 02:20 UTCEPSS rescore
  68. 2026-07-05 02:27 UTCEPSS rescore
  69. 2026-07-04 06:28 UTCEPSS rescore
  70. 2026-07-01 20:31 UTCOSV refresh
  71. 2026-07-01 15:03 UTCEPSS rescore
  72. 2026-07-01 15:03 UTCEPSS rescore
  73. 2026-06-30 23:20 UTCEPSS rescore
  74. 2026-06-30 23:20 UTCEPSS rescore
  75. 2026-06-28 14:05 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-13398?
CVE-2020-13398 is a high vulnerability published on May 22, 2020. An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) write vulnerability has been detected in cryptorsacommon in libfreerdp/crypto/crypto.c.
When was CVE-2020-13398 disclosed?
CVE-2020-13398 was first published on May 22, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-13398 actively exploited?
CVE-2020-13398 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.3% probability of exploitation in the next 30 days (82nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-13398?
CVE-2020-13398 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2020-13398?
A fix for CVE-2020-13398 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2020-13398 are linked in the Vendor Advisories panel on this page.

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