Threats / Check Point / CVE-2026-123039

CVE-2026-123039 · EUVD no mirror located · GCVE no mirror located Checked against CISA KEV on 14 Nov 2026

Check Point Multiple Products vulnerability

Check Point Firewall, Multi-Domain Security Management Server, Scalable Platforms, Security Gateway, and Security Management Server contain an incorrect permissions assignment for critical resources vulnerability when the Gaia OS DynamicCLI

Verdict

Today item — known-exploited.

Listed in CISA KEV. Prioritize remediation now and verify exposure.

CISA KEV Yes · 2026-11-13⁵EPSS 0.01274 (verify live)⁶CVSS 7.8³CISA SSVC Exploitation: active · Automatable: no · Impact: total⁴

Is it exploitable?

the evidence, ranked above the score

Reported exploitation

3 independent public reports of exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.

research.checkpoint.com ↗support.checkpoint.com ↗cisa.gov ↗Confirmed

Known-exploited (CISA KEV)

Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-11-13).

CISA KEV ↗Confirmed

Probability (EPSS)

EPSS 0.01274 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.

FIRST EPSS ↗High

Severity / affected

CVSS 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) · Affected: Check Point, Multiple Products. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.

CVE.org ↗Reported

Weakness (CWE)

Mapped to CWE-862 Missing Authorization, CWE-732 Incorrect Permission Assignment — weakness family: Authorization / access control.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.

CVE.org ↗Reported

CISA SSVC (triage disposition)

Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.

CISA-ADP ↗Reported

Currency of the record

CISA added this to its KEV catalog 1 day after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.

CISA KEV ↗CVE.org ↗Reported

WeaknessCWE-862 · Missing Authorization CWE-732 · Incorrect Permission AssignmentAuthorization / access control

Who’s exploiting it?

attribution turns risk into urgency

Attribution not established

No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.

Why it matters

the attack path, told twice: adversary, then board

Attacker/business narrative framing is pending triage for this record — see Coverage & confidence below. Facts and verdict above are derived deterministically from the public feed.

What to do

defensible action

Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.¹

Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.

Coverage & confidence

what we know, and what we don’t

Established (cited)

KEV listing (CISA)

EPSS probability (FIRST)

3 reported-exploitation source(s)

CVSS 7.8 — CNA-assigned (CVE.org)

CISA SSVC triage disposition (CVE.org ADP)

CWE weakness mapping — CNA-assigned (CVE.org)

Catalogued by checkpoint (CNA)

Coverage gaps — stated, not hidden

No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.

EPSS & exposure are time-varying; verify live at the source.

Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.

No finder is named in the public CVE record — attribution scoped to the sources checked.

Attacker/business narrative framing pending triage.

Disclosure & credit²

Catalogued by checkpointCNA

Credited with finding itNo finder is named in the public CVE record or the scanned vendor advisory — attribution scoped to the sources checked.

Found an error? Propose a correction.

A correction is a cited counter-claim — it must cite a source, gets reviewed by a second human, and is never auto-applied. See the correction convention and our identity npub1j7gt9ky7sfcrjn8jjee6693dkzvk4rahs0fk2suu7968dfns62zs3mqm3y.

With JavaScript off: publish a signed kind 1111 Nostr event tagging ["r", "https://basicsecurity.net/threat/cve-2026-123039.html"], ["v", "sha256:a6432df0fee2c961d3b699157c685a727262f044efa8c4807619d6e1814c59c2"] (the record version), plus ["src", "<your source URL>"] and ["t", "correction"], per the correction convention. Our identity: npub1j7gt9ky7sfcrjn8jjee6693dkzvk4rahs0fk2suu7968dfns62zs3mqm3y. Cite-or-die: an event with no src is a coverage finding, not a proposal.