7.8

CVE-2023-53033: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits

Modified
AliasesUBUNTU-CVE-2023-53033DEBIAN-CVE-2023-53033
Published 27-03-2025Last modified 05-08-2026

Vulnerability summary

CVE-2023-53033 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 6
RHSA-2023:2458SUSE-SU-2025:01633-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1195-1SUSE-SU-2025:1241-1

Timeline

  1. 27-03-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits If the offset + length goes over the ethernet + vlan header, then the length is adjusted to copy the bytes that are within the boundaries of the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet + vlan header are copied directly from the skbuff data area. Fix incorrect arithmetic operator: subtract, not add, the size of the vlan header in case of double-tagged packets to adjust the length accordingly to address CVE-2023-0179.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.20% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu96 products
  • linux< 5.15.0-67.74
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1031.35
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ f6ae9f120dada00abfb47313364c35118469455f, < 550efeff989b041f3746118c0ddd863c39ddc1aa | ≥ f6ae9f120dada00abfb47313364c35118469455f, < a8acfe2c6fb99f9375a9325807a179cd8c32e6e3 | ≥ f6ae9f120dada00abfb47313364c35118469455f, < 76ef74d4a379faa451003621a84e3498044e7aa3 | ≥ f6ae9f120dada00abfb47313364c35118469455f, < 696e1a48b1a1b01edad542a1ef293665864a4dd0 | 5.5
  • linux_kernel≥ 5.5, < 5.10.164 | ≥ 5.11, < 5.15.89 | ≥ 5.16, < 6.1.7 | 6.2:rc1 | 6.2:rc2 | 6.2:rc3 | 6.2:rc4
Debian1 product
  • linux< 6.1.7-1

3 vendors · 99 products

References

8 links