Open-iscsi: open-iscsi: dhcpv6 vendor option strlen heap out-of-bounds read and 1-byte write in iscsiuio
CVSS score
6.3
EPSS probability
—
Risk score
0.6
Published
4 h ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
Tam uyum
Evidence confidence
%55
Short explanation
A flaw in the iscsiuio component of open-iscsi causes the DHCPv6 option parser to call strlen() on raw network data without ensuring a NUL terminator is present. An attacker on the same network segment can trigger this via a crafted DHCPv6 Advertise message.
This vulnerability allows attackers on the same network segment to trigger daemon crashes, heap overwrites, or iSCSI initiator name corruption. The patch status remains unconfirmed in official sources.
What should be done?
- Follow vendor advisories
- Apply available updates
Chain of evidence and sources
Açık, open-iscsi projesinin iscsiuio bileşenini etkilemektedir.
Saldırganlar, aynı ağ segmentinden tasarlanmış DHCPv6 Advertise mesajları gönderebilir.
Show the technical text from the sources
A flaw was found in the iscsiuio component of open-iscsi. The DHCPv6 option parser calls strlen() on raw network data without ensuring a NUL terminator is present, causing it to read past the buffer into heap memory. This can result in a daemon crash, a 1-byte heap overwrite, or corruption of the iSCSI initiator name. An attacker on the same network segment can trigger this by sending a crafted DHCPv6 Advertise message.
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE: CWE-125
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-115485 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 6.3 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | CVE CNA |
| 6.3 | CVSS V31 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-115485 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-115485 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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