CVE-2026-44422

HIGHNVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.7% (50th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's RDPEAR NDR parser accepts one non-null NDR pointer ref-id for multiple logical pointer fields without tracking the pointed object's expected NDR type or ownership. When the same ref-id is reused across two pointer fields, the parser assigns the same heap object to both output fields. The generic destructor later walks each field independently and destroys/frees both pointers. This causes a malicious-server-triggerable heap use-after-free / double-free in the FreeRDP client's RDPEAR authentication-redirection path. This vulnerability is fixed in 3.26.0.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
50th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

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

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 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 total (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 29, 2026

Last Modified

July 27, 2026

Advisory Details (1)

Auto-updated Jun 6, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

FreeRDP RDPEAR NDR ref-id aliasing causes client-side UAF/double-free and type confusion · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-j9q5-7g8m-jc9v

Vendor Advisories for CVE-2026-44422(1)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuwinpr3-utils (3.30.0+dfsg-0ubuntu0.26.04.1) @ resolute2026-10-17ubuntu
redhatfreerdp-2:3.10.3-3.el10_0.92026-07-27redhat
redhatfreerdp-2:3.10.3-12.el10_2.62026-07-07redhat

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:11(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp22.10.0+dfsg1-1 ... 2.9.0+dfsg1-1~bpo11+1 (32 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp22.10.0+dfsg1-1 ... 2.11.7+dfsg1-6~deb12u1 (13 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp33.15.0+dfsg-2.1 ... 3.32.1+dfsg-1~bpo13+1 (49 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp33.15.0+dfsg-2.1 ... 3.26.0+dfsg-1~bpo13+1 (32 versions)
  • every version up to 3.26.0+dfsg-1: fixed in 3.26.0+dfsg-1
—

Weakness Classification(3)

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

Additional Vendor Advisories

(2)

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 10× in last 7d / 32× 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 100 of 231 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. None are among the latest 100 rows. The 131 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  2. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  3. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  4. 2026-10-18 03:39 UTCEG score recompute
  5. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  6. 2026-10-17 13:59 UTCEG score recompute
  7. 2026-10-17 13:59 UTCVendor advisory
  8. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  9. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  11. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  12. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  13. 2026-10-12 16:05 UTCEG score recompute
  14. 2026-10-11 19:47 UTCEG score recompute
  15. 2026-10-11 17:01 UTCEG score recompute
  16. 2026-10-11 14:27 UTCEG score recompute
  17. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  20. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  21. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  22. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  25. 2026-10-03 14:48 UTCOSV refresh
Show 75 more
  1. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  2. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  3. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  5. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  6. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  7. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-09-14 06:22 UTCEG score recompute
  13. 2026-09-14 06:22 UTCVendor advisory
  14. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-09-13 01:06 UTCOSV refresh
  16. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  26. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  27. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  28. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  29. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  30. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  31. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  32. 2026-08-25 04:17 UTCEG score recompute
  33. 2026-08-25 04:17 UTCVendor advisory
  34. 2026-08-23 14:11 UTCEG score recompute
  35. 2026-08-23 14:11 UTCVendor advisory
  36. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  37. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  38. 2026-08-21 14:59 UTCEG score recompute
  39. 2026-08-21 14:59 UTCVendor advisory
  40. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  41. 2026-08-20 22:28 UTCVendor advisory
  42. 2026-08-20 10:24 UTCEG score recompute
  43. 2026-08-20 10:24 UTCVendor advisory
  44. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  45. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  46. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  47. 2026-08-17 06:51 UTCEG score recompute
  48. 2026-08-17 06:51 UTCVendor advisory
  49. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  50. 2026-08-16 06:22 UTCEG score recompute
  51. 2026-08-16 06:22 UTCVendor advisory
  52. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  53. 2026-08-15 18:41 UTCEG score recompute
  54. 2026-08-15 18:41 UTCVendor advisory
  55. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  56. 2026-08-14 23:50 UTCVendor advisory
  57. 2026-08-14 12:08 UTCVendor advisory
  58. 2026-08-14 00:27 UTCEG score recompute
  59. 2026-08-14 00:27 UTCVendor advisory
  60. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  61. 2026-08-13 10:40 UTCVendor advisory
  62. 2026-08-12 22:58 UTCEG score recompute
  63. 2026-08-12 22:58 UTCVendor advisory
  64. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  65. 2026-08-12 11:17 UTCVendor advisory
  66. 2026-08-11 23:13 UTCEG score recompute
  67. 2026-08-11 23:13 UTCVendor advisory
  68. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  69. 2026-08-11 11:31 UTCEG score recompute
  70. 2026-08-11 11:31 UTCVendor advisory
  71. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  72. 2026-08-10 23:43 UTCVendor advisory
  73. 2026-08-10 06:16 UTCVendor advisory
  74. 2026-08-09 18:34 UTCEG score recompute
  75. 2026-08-09 18:34 UTCVendor advisory

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Frequently asked(5)

What is CVE-2026-44422?
CVE-2026-44422 is a high-severity vulnerability; its CVE record was published on May 29, 2026. FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's RDPEAR NDR parser accepts one non-null NDR pointer ref-id for multiple logical pointer fields without tracking the pointed object's expected NDR type or ownership. When the same ref-id is reused across two…
When was the CVE record for CVE-2026-44422 published?
The CVE record for CVE-2026-44422 was published on May 29, 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 July 27, 2026; the record at its source may have been updated since.
Is CVE-2026-44422 actively exploited?
CVE-2026-44422 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (50th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44422?
CVE-2026-44422 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-44422?
A fix for CVE-2026-44422 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-44422 are linked in the Vendor Advisories panel on this page.

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