EUVD-2026-76335
GHSA-9p9c-f6r5-6rgq
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:L confirmed for kernel driver; PR:L more accurate than PR:N since exploitation requires an authenticated local session even if sysfs reads are world-readable.
Primary rating from Vendor (Linux).
CVSS VectorVendor: Linux
Lifecycle Timeline
7DescriptionCVE.org
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: hp-bioscfg: fix off-by-one write in hp_get_string_from_buffer()
hp_get_string_from_buffer() clamps the converted string length against the destination buffer size with "size > dst_size", so when the converted length is exactly equal to dst_size, conv_dst_size is left at dst_size and the unconditional NUL terminator write
dst[conv_dst_size] = 0;
lands one byte past the destination buffer. This is the same shape of bug as the previously fixed off-by-one in hp_convert_hexstr_to_str(): the buffer is sized correctly for the content, but the terminator write is never checked against that size.
Fix by changing the comparison to ">=" so conv_dst_size is always left with room for the terminator.
All fixed-size destinations that reach this function (path[512], current_value[512], current_password/current_value[64], and the per-entry buffers in encodings[][512] and prerequisites[][512]) are affected.
AnalysisAI
Off-by-one out-of-bounds NUL write in the Linux kernel's HP BIOS configuration driver (hp-bioscfg) corrupts kernel memory when hp_get_string_from_buffer() receives a BIOS attribute string whose length exactly matches the destination buffer size, causing the terminator write to land one byte past the allocation. The flaw affects multiple fixed-size kernel buffers - path[512], current_value[512], current_password/current_value[64], and the per-entry encodings[][512] and prerequisites[][512] arrays - exclusively on HP hardware with the hp-bioscfg module loaded. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local access (AV:L) on HP hardware with the hp-bioscfg kernel module loaded and sysfs firmware-attributes populated by the HP BIOS. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is substantially lower than the CVSS 8.4 score suggests. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Linux kernel 6.12.109, 6.18.50, 7.2.4, or mainline 7.3-rc1 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify which HP systems (ProLiant servers, workstations with BIOS management) have the hp-bioscfg module loaded by checking kernel module inventory. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Adobe Flash Player contains a heap-based buffer overflow that allows remote code execution, exploited as a zero-day in J
sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not
The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 has incorrect exception ha
A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software co
HP ProCurve Manager (PCM) 3.20 and 4.0, PCM+ 3.20 and 4.0, Identity Driven Manager (IDM) 4.0, and Application Lifecycle
Remote code execution in Adobe Flash Player allows network attackers to execute arbitrary code via integer overflow expl
HPE Data Protector before 7.03_108, 8.x before 8.15, and 9.x before 9.06 allow remote attackers to execute arbitrary cod
Unspecified vulnerability in HP Storage Data Protector 8.x allows remote attackers to execute arbitrary code via unknown
Directory traversal vulnerability in CommunicationServlet in HP Service Virtualization 3.x before 3.50.1, when the AutoP
Multiple unspecified vulnerabilities in HP SiteScope 11.20 and 11.21, when SOAP is used, allow remote attackers to execu
UpdateDomainControllerServlet in the SNAC registration server in HP ProCurve Manager (PCM) 3.20 and 4.0, PCM+ 3.20 and 4
Unspecified vulnerability in HP LoadRunner before 11.52 allows remote attackers to execute arbitrary code via unknown ve
Same technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today