CVE-2022-49048 | ipv6: fix panic when forwarding a pkt with no in6 dev

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix panic when forwarding a pkt with no in6 dev kongweibin reported a kernel panic in ip6_forward() when input interface has no in6 dev associated. The following tc commands were used to reproduce this panic: tc qdisc del dev vxlan100 root tc qdisc add dev vxlan100 root netem corrupt 5%

Published: 2025-02-26 Last update: 2025-10-14 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-49048 is rated Low Risk (27.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.25%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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

Exploit prediction scoring system (EPSS) score for CVE-2022-49048

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 2026-06-15 0.01% 0.25% +0.24%
2 2026-04-06 0.05% 0.01% -0.04%
3 2025-12-23 — 0.05% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-49048

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: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.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2022-49048

OS Trackers for CVE-2022-49048

vendor priority summary link
debian not yet assigned CVE-2022-49048 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-2022-49048
redhat medium — https://access.redhat.com/security/cve/CVE-2022-49048
suse medium CVE-2022-49048 severity moderate: SUSE including 26 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 151 product×package rows across 30 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Linux Enterprise High Availability Extension 12 SP5, … (30 product lines)): Known Not Affected 151. https://www.suse.com/security/cve/CVE-2022-49048/
ubuntu medium CVE-2022-49048 medium priority: Ubuntu including 130 source packages (linux, linux-allwinner-5.19, …), 1040 status rows across 8 suites (bionic, focal, jammy, noble, oracular, trusty, upstream, xenial): DNE 713, ignored 146, released 101, not-affected 80. https://ubuntu.com/security/CVE-2022-49048

Affected software / configurations for CVE-2022-49048

Vendor Product Version Raw CPE
linux linux_kernel >= 4.19.199, < 4.19.239 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.4.136, < 5.4.190 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.10.54, < 5.10.112 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.13.6, < 5.14 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.14.1, < 5.15.35 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.16, < 5.17.4 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:*
linux linux_kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*
linux linux_kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*
linux linux_kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:*
linux linux_kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:*
linux linux_kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*
linux linux_kernel 5.14 cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:*
linux linux_kernel 5.18 cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
linux linux_kernel 5.18 cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*

References for CVE-2022-49048

cvelogic Threat Intelligence