CVE-2023-2265: An Improper Restriction of Rendered UI Layers or Frames in the Schweitzer Engineering Laboratories SEL-411L co

Q: How do I fix CVE-2023-2265?

sel-411l firmware: upgrade to r118-v4, r119-v5, r120-v6, r121-v3, r122-v3, r123-v3, r124-v3, r125-v3, r126-v4, r127-v2. Exact commands for each OS are on this page.

Q: Is CVE-2023-2265 being exploited?

CVE-2023-2265 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-2265 affect?

CVE-2023-2265 affects sel-411l firmware. Severity is medium (CVSS 4.3). An Improper Restriction of Rendered UI Layers or Frames in the Schweitzer Engineering Laboratories SEL-411L could allow an unauthenticated attacker to perform clickjacking based attacks against an authenticated and authorized user. See p

Q: How urgent is CVE-2023-2265?

Priority 23/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2023-2265 is a medium-severity flaw (CVSS 4.3) affecting sel-411l firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Improper Restriction of Rendered UI Layers or Frames in the Schweitzer Engineering Laboratories SEL-411L could allow an unauthenticated attacker to perform clickjacking based attacks against an authenticated and authorized user. See product Instruction Manual Appendix A dated 20230830 for more details.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-1021
Published	2023-11-30
Last modified	2026-06-17

Publisher (CNA): Schweitzer Engineering Laboratories, Inc. · Vendor: selinc

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-11-30 17:15 UTCPublished CVE record published
2026-06-17 05:52 UTCUpdated Record last modified

selinc sel-411l firmware UPGRADE

Affected: >= r118-v0 and < r118-v4 · >= r119-v0 and < r119-v5 · >= r120-v0 and < r120-v6 · >= r121-v0 and < r121-v3 · >= r122-v0 and < r122-v3 · >= r123-v0 and < r123-v3 · >= r124-v0 and < r124-v3 · >= r125-v0 and < r125-v3

Fixed in: r118-v4, r119-v5, r120-v6, r121-v3, r122-v3, r123-v3, r124-v3, r125-v3, r126-v4, r127-v2

Safe to downgrade to: a release before r118-v0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-2265?

sel-411l firmware: upgrade to r118-v4, r119-v5, r120-v6, r121-v3, r122-v3, r123-v3, r124-v3, r125-v3, r126-v4, r127-v2. Exact commands for each OS are on this page.

Is CVE-2023-2265 being exploited?

CVE-2023-2265 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-2265 affect?

CVE-2023-2265 affects sel-411l firmware. Severity is medium (CVSS 4.3). An Improper Restriction of Rendered UI Layers or Frames in the Schweitzer Engineering Laboratories SEL-411L could allow an unauthenticated attacker to perform clickjacking based attacks against an authenticated and authorized user. See p

How urgent is CVE-2023-2265?

Priority 23/100. No elevated risk signals yet.

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CVE-2023-2264 MEDIUM 4.0 UPGRADE An improper input validation vulnerability in the Schweitzer Engineering Laboratories SEL-411L could allow a m

References

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