HIGH
CVE-2015-8743
CWE-125Published: December 29, 2016· Updated: Jun 17, 2026
7.1
CVSS v3.1
Official Description
QEMU (aka Quick Emulator) built with the NE2000 device emulation support is vulnerable to an OOB r/w access issue. It could occur while performing 'ioport' r/w operations. A privileged (CAP_SYS_RAWIO) user/process could use this flaw to leak or corrupt QEMU memory bytes.
Technical Analysis
CVE-2015-8743 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 7.1.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (20)
→
http://www.debian.org/security/2016/dsa-3469Third Party Advisory
→
http://www.debian.org/security/2016/dsa-3470Third Party Advisory
→
http://www.debian.org/security/2016/dsa-3471Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/01/04/1Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/01/04/2Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/79820Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1034574Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=1264929Issue Tracking
→
https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00050.htmlPatch · Vendor Advisory
→
https://security.gentoo.org/glsa/201602-01Third Party Advisory
→
http://www.debian.org/security/2016/dsa-3469Third Party Advisory
→
http://www.debian.org/security/2016/dsa-3470Third Party Advisory
→
http://www.debian.org/security/2016/dsa-3471Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/01/04/1Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/01/04/2Mailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2015-8743
CVSS Score7.1 / 10
SeverityHIGH
WeaknessCWE-125
CISA KEVNo
Affected2 vendor(s)
PublishedDec 29, 2016
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-8743 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.