CVE-2026-24465: Stack-based buffer overflow vulnerability exists in ELECOM wireless LAN access point devices
53
This month
CRITICAL 9.8REMOTEMITIGATEMITIGATEUPGRADE
CVE-2026-24465 is a critical-severity flaw (CVSS 9.8) affecting wab-s300iw-pd firmware, wab-s733iw-pd firmware, wrc-x1500gsa-b firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Stack-based buffer overflow vulnerability exists in ELECOM wireless LAN access point devices. A crafted packet may lead to arbitrary code execution.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
elecom wab-s300iw-pd firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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.
elecom wab-s733iw-pd firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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.
elecom wrc-x1500gsa-b firmware UPGRADE
Affected: < 1.13
Fixed in: 1.13
Safe to downgrade to: no unaffected older release
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.
elecom wrc-x1500gs-b firmware UPGRADE
Affected: < 1.13
Fixed in: 1.13
Safe to downgrade to: no unaffected older release
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.
elecom wab-s300iw2-pd firmware UPGRADE
Affected: < 5.5.02
Fixed in: 5.5.02
Safe to downgrade to: no unaffected older release
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.
elecom wab-s300iw-ac firmware UPGRADE
Affected: < 5.5.02
Fixed in: 5.5.02
Safe to downgrade to: no unaffected older release
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 sourceNVD · 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-2026-24465?
wab-s300iw-pd firmware: mitigate or apply the listed mitigation; wab-s733iw-pd firmware: mitigate or apply the listed mitigation; wrc-x1500gsa-b firmware: upgrade to 1.13. Exact commands for each OS are on this page.
Is CVE-2026-24465 being exploited?
CVE-2026-24465 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-2026-24465 affect?
CVE-2026-24465 affects wab-s300iw-pd firmware, wab-s733iw-pd firmware, wrc-x1500gsa-b firmware. Severity is critical (CVSS 9.8). Stack-based buffer overflow vulnerability exists in ELECOM wireless LAN access point devices. A crafted packet may lead to arbitrary code execution.
How urgent is CVE-2026-24465?
Priority 53/100. Critical severity; Remotely exploitable, no login, no user action
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