CVE-2018-17962

Exp

Qemu has a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used.

Published: 2018-10-09 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-17962 is rated High Exploit Risk (61.9/100): CVSS High severity, with low exploitation likelihood (EPSS 0.26%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-17962

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-17962

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-06 0.75% 0.26% -0.49%
2 2025-12-28 0.86% 0.75% -0.11%
3 2025-12-27 — 0.86% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-17962

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2018-17962

OS Trackers for CVE-2018-17962

vendor priority summary link
debian not yet assigned CVE-2018-17962 not yet assigned priority: Debian including 1 source packages (qemu), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-17962
redhat medium — https://access.redhat.com/security/cve/CVE-2018-17962
suse medium CVE-2018-17962 severity moderate: SUSE including 614 source package names (kvm-1.4.2-53.26.2, kvm-1.4.2-60.18.2, …), 1275 product×package rows across 81 product lines (SLES for SAP Applications 11 SP3, SUSE CaaS Platform 3.0, … (81 product lines)): Fixed 826, Known Not Affected 449. https://www.suse.com/security/cve/CVE-2018-17962/
ubuntu medium CVE-2018-17962 medium priority: Ubuntu including 2 source packages (qemu, qemu-kvm), 20 status rows across 10 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, trusty, upstream, xenial): DNE 9, released 9, needs-triage 2. https://ubuntu.com/security/CVE-2018-17962

Affected software / configurations for CVE-2018-17962

Vendor Product Version Raw CPE
qemu qemu 2.1.0 cpe:2.3:a:qemu:qemu:2.1.0:*:*:*:*:*:*:*
qemu qemu 2.8.0 cpe:2.3:a:qemu:qemu:2.8.0:*:*:*:*:*:*:*
qemu qemu 2.12.0 cpe:2.3:a:qemu:qemu:2.12.0:*:*:*:*:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.10 cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
oracle linux 7 cpe:2.3:o:oracle:linux:7:0:*:*:*:*:*:*
redhat linux 6.0 cpe:2.3:o:redhat:linux:6.0:*:*:*:*:*:*:*
suse linux_enterprise_server 11 cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:*
suse linux_enterprise_server 11 cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:*
suse linux_enterprise_server 12 cpe:2.3:o:suse:linux_enterprise_server:12:*:*:*:ltss:*:*:*
suse linux_enterprise_server 15 cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:*:*:*

References for CVE-2018-17962

cvelogic Threat Intelligence