CVE-2019-9162

Exp

In the Linux kernel before 4.20.12, net/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module has insufficient ASN.1 length checks (aka an array index error), making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmp_version and snmp_helper.

Published: 2019-02-25 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-9162 is rated High Exploit Risk (60.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.19%). 3 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-2019-9162

EDB-ID Source Kind Published Link
46477 exploit_db edb 2019-03-01 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-9162

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 2025-11-21 0.15% 0.19% +0.04%
2 2025-11-18 0.19% 0.15% -0.04%
3 2025-05-24 — 0.19% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-9162

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:L)
A normal user session is enough; they don’t have to be admin.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2019-9162

OS Trackers for CVE-2019-9162

vendor priority summary link
debian not yet assigned CVE-2019-9162 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-9162
redhat high — https://access.redhat.com/security/cve/CVE-2019-9162
ubuntu medium CVE-2019-9162 medium priority: Ubuntu including 27 source packages (linux, linux-aws, …), 135 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): DNE 69, released 37, not-affected 27, ignored 2. https://ubuntu.com/security/CVE-2019-9162

Affected software / configurations for CVE-2019-9162

Vendor Product Version Raw CPE
linux linux_kernel >= 4.19, < 4.19.25 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.20, < 4.20.12 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
netapp hci_management_node — cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
netapp snapprotect — cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:*
netapp solidfire — cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
netapp cn1610_firmware — cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:*

References for CVE-2019-9162

URL Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc Mailing List Patch Vendor Advisory
http://www.securityfocus.com/bid/107159 Broken Link
https://bugs.chromium.org/p/project-zero/issues/detail?id=1776 Exploit Issue Tracking Mailing List Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.25 Mailing List Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.12 Mailing List Vendor Advisory
https://github.com/torvalds/linux/commit/c4c07b4d6fa1f11880eab8e076d3d060ef3f55fc Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20190327-0002/ Third Party Advisory
https://support.f5.com/csp/article/K31864522 Third Party Advisory
https://usn.ubuntu.com/3930-1/ Third Party Advisory
https://usn.ubuntu.com/3930-2/ Third Party Advisory
https://www.exploit-db.com/exploits/46477/ Exploit Patch Third Party Advisory VDB Entry
cvelogic Threat Intelligence