CVE-2026-20881

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 5.5 from GitHub Security Advisory published 2026-05-12. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: <0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

Divide by zero for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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 (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
<0.1%
EPSS %ILE
below the 1st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 12, 2026

Last Modified

May 15, 2026

Advisory Details (1)

Auto-updated Jun 16, 2026
Fix referenced — no release confirmed yet.
Web page

INTEL-SA-01387

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01387.html

Vendor Advisories for CVE-2026-20881(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 21× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 91 of 189 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 9 repeat rows among the latest 100 are merged into the row they repeat. The 98 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 16:33 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  2. 2026-10-12 16:23 UTCEG score recompute
  3. 2026-10-11 20:05 UTCEG score recompute
  4. 2026-10-11 17:18 UTCEG score recompute
  5. 2026-10-11 14:50 UTCEG score recompute
  6. 2026-10-11 13:48 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  7. 2026-10-10 19:59 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  8. 2026-10-08 17:11 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  9. 2026-10-07 23:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  10. 2026-10-06 15:17 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  11. 2026-10-01 19:49 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  13. 2026-09-29 15:21 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  14. 2026-09-28 13:51 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  15. 2026-09-26 15:58 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  16. 2026-09-26 00:26 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  17. 2026-09-24 14:03 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  18. 2026-09-18 19:27 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  19. 2026-09-16 14:07 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  20. 2026-09-16 05:15 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  21. 2026-09-13 16:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  22. 2026-09-11 14:52 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  23. 2026-09-10 09:34 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  24. 2026-09-08 22:00 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  25. 2026-09-07 16:01 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
Show 66 more
  1. 2026-09-06 13:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  2. 2026-09-04 05:06 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  3. 2026-09-01 13:53 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  4. 2026-08-30 01:22 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  5. 2026-08-28 21:41 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  6. 2026-08-27 14:25 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  7. 2026-08-26 14:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  8. 2026-08-25 13:48 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  9. 2026-08-23 18:21 UTCEG score recompute
  10. 2026-08-23 18:21 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  11. 2026-08-21 23:49 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  12. 2026-08-20 22:55 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  13. 2026-08-19 17:03 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  14. 2026-08-18 13:48 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  15. 2026-08-17 13:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  16. 2026-08-17 10:54 UTCEG score recompute
  17. 2026-08-17 10:54 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  18. 2026-08-16 14:56 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  19. 2026-08-16 04:16 UTCEG score recompute
  20. 2026-08-16 04:16 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  21. 2026-08-15 01:30 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  22. 2026-08-15 00:25 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  23. 2026-08-14 02:47 UTCEG score recompute
  24. 2026-08-14 02:47 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  25. 2026-08-13 22:00 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  26. 2026-08-12 20:35 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  27. 2026-08-11 22:57 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  28. 2026-08-11 01:04 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  29. 2026-08-09 23:44 UTCEG score recompute
  30. 2026-08-09 23:44 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  31. 2026-08-09 13:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  32. 2026-08-09 02:07 UTCEG score recompute
  33. 2026-08-09 02:07 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  34. 2026-08-08 16:37 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  35. 2026-08-07 17:06 UTCEG score recompute
  36. 2026-08-07 17:06 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  37. 2026-08-06 19:28 UTCEG score recompute
  38. 2026-08-06 19:28 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  39. 2026-08-06 13:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  40. 2026-08-05 21:50 UTCEG score recompute
  41. 2026-08-05 21:50 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  42. 2026-08-05 19:17 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  43. 2026-08-04 15:10 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  44. 2026-08-04 10:38 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  45. 2026-08-03 19:17 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  46. 2026-08-02 21:07 UTCEG score recompute
  47. 2026-08-02 21:07 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  48. 2026-08-02 02:26 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  49. 2026-08-01 23:29 UTCEG score recompute
  50. 2026-08-01 23:29 UTCGHSA enrichmentGHSA-c52r-mjqp-7w2r · GitHub CVSS 5.5
  51. 2026-08-01 04:15 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  52. 2026-07-30 01:30 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  53. 2026-07-27 14:13 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  54. 2026-07-26 14:54 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  55. 2026-07-25 14:17 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  56. 2026-07-24 14:17 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  57. 2026-07-23 14:18 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  58. 2026-07-23 03:06 UTCEG score recompute
  59. 2026-07-22 14:08 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  60. 2026-07-20 17:08 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  61. 2026-07-19 14:31 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  62. 2026-07-18 10:04 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  63. 2026-07-16 17:03 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  64. 2026-07-15 16:57 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  65. 2026-07-13 22:30 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  66. 2026-07-12 05:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20881?
CVE-2026-20881 is a medium-severity vulnerability; its CVE record was published on May 12, 2026. Divide by zero for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may…
When was the CVE record for CVE-2026-20881 published?
The CVE record for CVE-2026-20881 was published on May 12, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of May 15, 2026; the record at its source may have been updated since.
Is CVE-2026-20881 actively exploited?
CVE-2026-20881 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-20881?
CVE-2026-20881 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-20881?
A fix for CVE-2026-20881 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-20881 are linked in the Vendor Advisories panel on this page.

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