Ivanti · Auth bypass
Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
At a glance
Actively exploited in the wild — prioritise confirming exposure.
High rather than Critical: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Ivanti, treat it as Critical.
Briefing
- Do not treat uncorroborated claims as confirmed breaches.
Questions to ask IT
- Do we run Ivanti, and which versions?
- Is any of it reachable from the internet?
- Have we checked whether it has already been used against us?
- If it is still not patched, what mitigation is in place, and what is holding the fix up?
Next steps
- Confirm exposure, mitigation status and any service interruption risk.
Vulnerability facts
Full CVE detail CVE-2026-1603- 8.6 · HighExploitable over the network without any account, and no one has to click or open anything. High impact on confidentiality, and it can reach beyond the vulnerable system.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- Listed: attacks using it have been seen (on the catalogue since )
- Elevated attack likelihood (~88.3% in 30 days)
- CVE-2026-1603 has estimated attack likelihood 0.8056 (~80.6% estimated chance of exploitation in 30 days; 99.6th percentile) as of 2026-07-31 — probability signal, not confirmed exploitation
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- Ivanti Endpoint Manager (EPM) contains an authentication bypass using an alternate path or channel vulnerability that could allow a remote unauthenticated attacker to leak specific stored credential data.
- CVE-2026-1603 is listed in known-exploited catalogue (exploitation in the wild)
- 6% estimated chance of exploitation in 30 days; 99.
- Authoritative catalogues report active exploitation of this vulnerability.
Why this matters in the UK
- Known-exploited catalogue reports exploitation in the wild
Products and services involved
- Ivanti92% match confidence · CVE-2026-1603
Part of Multiple OS command injection vulnerabilities disclosed
Pulse
Last checked 4d ago · Recheck overdue since 5 Nov 2026, 21:36 UK time · 2 quiet checks collapsed
held at 80.6%; ranking metadata was updated.
Listed on the — prioritise confirming exposure and patching.
2 quiet checks hidden.
Sources
Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ConfirmedHeadline90% confidence
Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
- ConfirmedSummary fact75% confidence
Ivanti Endpoint Manager (EPM) contains an authentication bypass using an alternate path or channel vulnerability that could allow a remote unauthenticated attacker to leak specific stored credential data. Affects Ivanti Endpoint Manager (EPM). Known ransomware campaign use: Unknown. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-1603
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-1603 is listed in known-exploited catalogue (exploitation in the wild)
- ConfirmedEstimated attack likelihood95% confidence
CVE-2026-1603 has estimated attack likelihood 0.8056 (~80.6% estimated chance of exploitation in 30 days; 99.6th percentile) as of 2026-07-31 — probability signal, not confirmed exploitation

