CVE-2020-27844

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

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
Severity78% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
69%
KEV
Not listed

Published

January 5, 2021

Last Modified

November 21, 2024

References (10)

Affected Packages

(15 across 15 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.11(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.12(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.13(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.14(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.15(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.16(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.18(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
openjpeg—2.4.0-r0—

Weakness Classification(2)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 30× 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 120 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2020-27844?
CVE-2020-27844 is a high vulnerability published on January 5, 2021. A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as…
When was CVE-2020-27844 disclosed?
CVE-2020-27844 was first published in the National Vulnerability Database on January 5, 2021, 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-2020-27844 actively exploited?
CVE-2020-27844 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 31.2% of all scored CVEs.
What is the CVSS score of CVE-2020-27844?
CVE-2020-27844 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2020-27844?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-27844, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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