- Description
- IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.
- Source
- psirt@us.ibm.com
- NVD status
- Analyzed
- Products
- http_server
CVSS 3.1
- Type
- Primary
- Base score
- 9.1
- Impact score
- 5.2
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Severity
- CRITICAL
- psirt@us.ibm.com
- CWE-400
- Hype score
- Not currently trending
🚨 HIGH severity CVE-2026-8856 (CVSS 7.7) affects IBM HTTP Server 8.5 & 9.0. DoS vulnerability exploitable when attacker has write access to server config. Patch immediately. #CVE #Vulnerability #PatchNow https://t.co/pLIGxZSKlB
@DFIR_Lab
28 May 2026
32 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🚨*CVE* CVE-2026-8856 IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration. https://t.co/wDNZDKYSaR ----- Traducción: CVE-2026-8856 IBM HTTP Server 8.5… https://t.co/utmtNgl
@infoflowcloud
26 May 2026
33 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
[
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D02EA5D6-7556-4C20-A991-6DC5F6B7351B",
"versionEndExcluding": "8.5.5.30",
"versionStartIncluding": "8.5.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:ibm:http_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F7790D7F-B70F-4278-877B-DE501C60A9B5",
"versionEndExcluding": "9.0.5.29",
"versionStartIncluding": "9.0.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E492C463-D76E-49B7-A4D4-3B499E422D89",
"vulnerable": false
},
{
"criteria": "cpe:2.3:o:ibm:z\\/os:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0E97A964-6F9E-4C87-9B90-21AE2C1DF52F",
"vulnerable": false
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*",
"matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1",
"vulnerable": false
},
{
"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
]