CASCACascade Atlas

Evidence dossier

CVE-2026-1731

Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)

83.3–98.5Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

BeyondTrust Remote Support (RS) and certain older versions of Privileged Remote Access (PRA) contain a critical pre-authentication remote code execution vulnerability. By sending specially crafted requests, an unauthenticated remote attacker may be able to execute operating system commands in the context of the site user.

State
PUBLISHED
Published
Feb 6, 2026
Updated
Feb 26, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS88.11%

2026-07-18 · v2026.06.15 · percentile 99.8%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

BToriginal assertion
container

Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CISA KEVoriginal assertion
observed_exploitation

BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA) OS Command Injection Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.881150000000; percentile 0.997500000000

Applicability

Cited product scope

Trace impact →
BeyondTrustRemote Support(RS) & Privileged Remote Access(PRA)
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "RS 25.3.1"}, {"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "PRA 24.3.4"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*; end excluding 25.1supported
Unknown vendorUnknown product
cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*; end excluding 25.3.2supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.9
13061848-ea10-403d-bd75-c83a022c2891CVSS 4.0 · role SecondaryCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
9.9
BTCVSS 4.0 · role unknownCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.