01 Record
CVE-2026-18577
Incomplete patch leads to administrative account takeover
HighKEVPUBLISHEDCNA: N-able
CNA base score8.2 CVSS v4.0CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:A
02 Description
Incomplete patch leads to administrative account takeover
03 Exploitation and scoring
- Exploitation
- Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-08-03. Federal remediation due 2026-08-06.
- SSVC decision
- ExploitationactiveCISA reports credible evidence of active exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 14.62% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 96.5% of scored records. A rank, not a probability.
- NVD base score
- 8.2 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:A/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
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-02 22:06Z2 MO AGO
- Last updated
- 2026-08-04 13:32Z2 MO AGO
- Reserved
- 2026-08-02
- Assigning CNA
- N-able
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.2)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:A
- Weaknesses
- CWE-288Authentication Bypass Using an Alternate Path or ChannelBase
- Data version
- 5.2
- Document digest
- 0ee3b5421914e7e3d5f802965fc6dba52a3f772f4c105c4d4d9eb9d0d5d9e83a
05 Affected products
VendorProductVersionsPlatforms
06 References
- documentation.n-able.comhttps://documentation.n-able.com/N-central/Release_Notes/GA/Content/N-central_2026.3_HF1_Release_Notes.htm
- status.n-able.comhttps://status.n-able.com/2026/08/02/n-central-2026-3-hotfix-1-mitigation-for-cve-2026-18577/
- www.cve.orghttps://www.cve.org/CVERecord?id=CVE-2026-18556
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-18577
- www.n-able.comhttps://www.n-able.com/blog/n-central-security-update-august-2-2026