CVE-2018-10731
No exploitation reported by the sources we read.
- Published2018-05-17
- WeaknessCWE-119
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).
Timeline
dates in UTC- 2018-05-1719:29CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-10731?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-10731?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.x | ≥ 1.0, ≤ 1.33 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.x | ≥ 1.0, ≤ 1.33 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.x | > 1.0, ≤ 1.33 | no fix published | NVD |
26 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
PHOENIX CONTACT FL SWITCH 3xxx/4xxx/48xx Series
All FL SWITCH 3xxx 4xxx and 48xxx Series products running firmware: Version 1.0 to 1.32 are affected
Fix
- Mitigation from the vendor CISA ICSA-18-137-02 · 1 productFL SWITCH 3005
- Mitigation from the vendor CISA ICSA-18-137-02 · 1 productFL SWITCH 3005T
- Mitigation from the vendor CISA ICSA-18-137-02 · 1 productFL SWITCH 3004T-FX
- Mitigation from the vendor CISA ICSA-18-137-02 · 1 productFL SWITCH 3004T-FX ST
- Mitigation from the vendor CISA ICSA-18-137-02 · 1 productFL SWITCH 3008
- Mitigation from the vendor CISA ICSA-18-137-02 · 1 productFL SWITCH 3008T
Advisories and patches
- cert.vde.comPatch
- ics-cert.us-cert.govPatch
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.09read 2026-10-23
- NVDCVSS 2.09.3read 2026-10-23
- NVDweakness (CWE)CWE-119read 2026-10-23
- FIRST EPSSEPSS score2.7 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Published
- 2018-05-17
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2018-10731?
Is CVE-2018-10731 actively exploited?
What is the CVSS score for CVE-2018-10731?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.