Ivanti · Auth bypass
Ivanti Connect Secure Authentication Bypass Vulnerability
At a glance
Actively exploited in the wild — prioritise confirming exposure.
Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Ivanti Connect Secure, treat it as High.
Briefing
There is no written leader briefing for this story yet. These questions come from the facts we hold.
Questions to ask IT
- Do we run Ivanti Connect Secure, 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 not yet patched, what mitigation is in place, and will the fix be done by 9 Nov?
Next steps
- Confirm exposure and remediation status for affected products
Vulnerability facts
Full CVE detail CVE-2026-104935- 8.6 · HighExploitable over the network without any account, and no one has to click or open anything. High impact on confidentiality; low on integrity and availability.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
- Listed: attacks using it have been seen
- Elevated attack likelihood (~88.9% in 30 days)
- Before 25.1.3.0
- 25.1.3.0
- 22.7R2.14 and earlier
These facts are for CVE-2026-104935. This event covers 3 more CVEs, each with its own record. Versions are as the CVE record states them; check the vendor advisory before planning a fix.
No technical write-up beyond these facts and the summary below yet.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- On 29 October 2026, Ivanti updated its security advisory for Ivanti Connect Secure (ICS) to include two additional vulnerabilities and released fixes for both. Ivanti rates CVE-2026-111357, a missing authentication for critical function vulnerability (CWE-306), with a CVSSv3.1 score of 8.8; it allows a local authenticated attacker to escalate privileges.
- CVE-2026-104935 is confirmed as exploited in the wild (US known-exploited catalogue)
- CVE-2026-104935 has an estimated ~86.8% chance of attack in 30 days (99.7th percentile) as of 2026-11-01 — probability signal, not confirmed exploitation
- Authoritative catalogues report active exploitation of this vulnerability.
Products and services involved
- Ivanti Connect Secure93% match confidence · CVE-2026-104935
Same event, different frames
Distinct often headline the same incident differently.
Pulse
Last checked 2d ago · Recheck overdue since 7 Nov 2026, 18:03 UK time
Linked reporting from Rapid7 Blog (research).
Review the new source against your estate and the next steps in the briefing.
Read source (Rapid7 Blog)1 quiet check hidden.
Sources
- SecurityWeekNews
Ivanti Zero-Day Chain Gave Attackers Root Access to Fully Patched VPN
Ivanti Connect Secure zero-day exploited in the wild (CVE-2026-104935)
- CISA Cybersecurity AdvisoriesOfficial
CISA Adds Two Known Exploited Vulnerabilities to Catalog
- CISA Cybersecurity AdvisoriesOfficial
CISA Urges Patching Newly Exploited Vulnerability in Ivanti Connect Secure
Ivanti Connect Secure zero-day exploited in the wild (CVE-2026-104935)
CVE-2026-104935: Ivanti Connect Secure Zero-Day Exploited in Chained Attacks
Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
Additional Ivanti Connect Secure zero-days exploited in the wild (CVE-2026-111357, CVE-2026-118527)
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ClaimedHeadline60% confidence
Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
- ProbableSummary fact75% confidence
On 29 October 2026, Ivanti updated its security advisory for Ivanti Connect Secure (ICS) to include two additional vulnerabilities and released fixes for both. Ivanti rates CVE-2026-111357, a missing authentication for critical function vulnerability (CWE-306), with a CVSSv3.1 score of 8.8; it allows a local authenticated attacker to escalate privileges.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-104935
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-104935 is confirmed as exploited in the wild (US known-exploited catalogue)
- ConfirmedEstimated attack likelihood95% confidence
CVE-2026-104935 has an estimated ~86.8% chance of attack in 30 days (99.7th percentile) as of 2026-11-01 — probability signal, not confirmed exploitation
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-111357
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-111357 is confirmed as exploited in the wild (US known-exploited catalogue)
- ConfirmedEstimated attack likelihood95% confidence
CVE-2026-111357 has an estimated ~0.5% chance of attack in 30 days (45th percentile) as of 2026-11-01 — probability signal, not confirmed exploitation
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-118527
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-118527 is confirmed as exploited in the wild (US known-exploited catalogue)

