CVE-2026-109945

MEDIUMNVD 5.95.9
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.2% (14th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 5.3 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-10-13) is not newer than that change (2026-10-21), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated

Also known asEUVD-2026-98710 (ENISA EUVD) · GHSA-f55c-wf6q-wcjx (GitHub Security Advisories)Source: ENISA EUVD

5.9EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (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: 0.2%CVSS: 5.9Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate context workers to free and reuse the SCardHandle, causing client-process heap corruption and termination.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100

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)
Severity59% × 45%
Impact severity (EG Severity): CVSS 5.9 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 or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (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 available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
14th
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 (5.9): severity, escalated by confirmed exploitation. This CVE's 5.9 is its impact severity (EG Severity), not escalated.

EG Severity
5.9 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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 or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (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.

The score's inputs: 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

October 13, 2026

Last Modified

October 21, 2026

Advisory Details (2)

Auto-updated Oct 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
Web page

FreeRDP 3.0.0 before 3.32.0 Smartcard Use-After-Free via Concurrent Disconnect and Transmit | Advisories | VulnCheck

https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-smartcard-use-after-free-via-concurrent-disconnect-and-transmit
GitHub advisoryMentions a patch (unverified)🟡 PoC Available

Concurrent smartcard disconnect and transmit can use a freed client heap object · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8rpr-jjjg-5qv6

Vendor Advisories for CVE-2026-109945(1)

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

Affected Packages

(3 across 3 ecosystems)
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 ... 3.32.2+dfsg-1 (50 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp33.15.0+dfsg-2.1 ... 3.31.1+dfsg-1~bpo13+1 (43 versions)
  • every version up to 3.32.0+dfsg-1: fixed in 3.32.0+dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 37× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-12 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-11-11 16:37 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  3. 2026-11-11 06:32 UTCEchelonGraph re-scored
  4. 2026-11-11 06:32 UTCGHSA enrichmentGHSA-f55c-wf6q-wcjx · GitHub severity MODERATE · GitHub CVSS 5.3
  5. 2026-11-10 16:41 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  6. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-11-06 16:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  12. 2026-11-04 01:31 UTCEchelonGraph re-scored
  13. 2026-11-04 01:31 UTCGHSA enrichmentGHSA-f55c-wf6q-wcjx · GitHub severity MODERATE · GitHub CVSS 5.3
  14. 2026-11-03 16:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  15. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  16. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  18. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-10-29 15:05 UTCEchelonGraph re-scored
  21. 2026-10-29 15:05 UTCGHSA enrichmentGHSA-f55c-wf6q-wcjx · GitHub CVSS 5.3
  22. 2026-10-29 09:25 UTCOSV refresh
  23. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  25. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
Show 23 more
  1. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-10-25 14:53 UTCEchelonGraph re-scored
  3. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-21 15:25 UTCEchelonGraph re-scored▲ 0.60
  8. 2026-10-21 15:25 UTCGHSA enrichmentGHSA-f55c-wf6q-wcjx · GitHub CVSS 5.3
  9. 2026-10-21 15:25 UTCNVD updateCVSS v3 → 5.9
  10. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-10-18 05:06 UTCEchelonGraph re-scored
  14. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-14 20:40 UTCEchelonGraph re-scored
  18. 2026-10-14 20:39 UTCGHSA enrichmentGHSA-f55c-wf6q-wcjx · GitHub CVSS 5.3
  19. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-13 14:27 UTCEchelonGraph re-scored
  21. 2026-10-13 14:02 UTCEchelonGraph re-scored
  22. 2026-10-13 13:41 UTCEchelonGraph re-scoredFirst assessed: 5.3 MEDIUM
  23. 2026-10-13 13:39 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-109945?
CVE-2026-109945 is a medium-severity vulnerability; its CVE record was published on October 13, 2026. FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate context workers to free and reuse the…
When was CVE-2026-109945 made public?
CVE-2026-109945 was made public on September 29, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on October 13, 2026. EchelonGraph's copy of the record carries a last-modified date of October 21, 2026; the record at its source may have been updated since.
Is CVE-2026-109945 actively exploited?
CVE-2026-109945 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-109945?
CVE-2026-109945 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-109945?
A fix for CVE-2026-109945 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-109945 are linked in the Vendor Advisories panel on this page.

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