AEGLIX vulnerability intelligence
CVE-2021-22600
MEDIUM · CVSS 6.6 · Analyzed
Published: 2022-01-26 · Updated: 2026-06-17 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T12:29:01.080104+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
Patch review priority
Known exploitation: prioritize review
- CISA KEV lists real-world exploitation.
FIRST EPSS: 6.59% · percentile 93.8 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 6.6 · MEDIUM
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H
- Weaknesses
- CWE-415
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Linux · Kernel
- Added to catalog
- 2022-04-11
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-05-02
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:a400_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:c400_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
From (inclusive): 4.14.175
Before (exclusive): 4.14.259
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
From (inclusive): 4.19.114
Before (exclusive): 4.19.222
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
From (inclusive): 5.4.29
Before (exclusive): 5.4.168
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
From (inclusive): 5.5.14
Before (exclusive): 5.10.88
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
From (inclusive): 5.11
Before (exclusive): 5.15.11
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
Mailing List · Patch
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Mailing List · Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230110-0002/
Third Party Advisory
- https://www.debian.org/security/2022/dsa-5096
Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
Mailing List · Patch
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Mailing List · Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230110-0002/
Third Party Advisory
- https://www.debian.org/security/2022/dsa-5096
Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22600
US Government Resource