CVE-2026-27755: SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain a weak session identifier generation vulner

Q: How do I fix CVE-2026-27755?

sl902-swtgw124as firmware: upgrade to newer than 200.1.20. Exact commands for each OS are on this page.

Q: Is CVE-2026-27755 being exploited?

CVE-2026-27755 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-2026-27755 affect?

CVE-2026-27755 affects sl902-swtgw124as firmware. Severity is critical (CVSS 9.8). SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain a weak session identifier generation vulnerability that allows attackers to forge authenticated sessions by computing predictable MD5-based cookies. Attackers who know or gu

Q: How urgent is CVE-2026-27755?

Priority 49/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-27755 is a critical-severity flaw (CVSS 9.8) affecting sl902-swtgw124as firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain a weak session identifier generation vulnerability that allows attackers to forge authenticated sessions by computing predictable MD5-based cookies. Attackers who know or guess valid credentials can calculate the session identifier offline and bypass authentication without completing the login flow, gaining unauthorized access to the device.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-330
Published	2026-02-27
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: sodola-network

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

Am I affected?

Timeline

2026-02-27 19:16 UTCPublished CVE record published
2026-06-17 10:27 UTCUpdated Record last modified

sodola-network sl902-swtgw124as firmware UPGRADE

Affected: <= 200.1.20

Fixed in: newer than 200.1.20

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 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-2026-27755?

sl902-swtgw124as firmware: upgrade to newer than 200.1.20. Exact commands for each OS are on this page.

Is CVE-2026-27755 being exploited?

CVE-2026-27755 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-2026-27755 affect?

CVE-2026-27755 affects sl902-swtgw124as firmware. Severity is critical (CVSS 9.8). SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain a weak session identifier generation vulnerability that allows attackers to forge authenticated sessions by computing predictable MD5-based cookies. Attackers who know or gu

How urgent is CVE-2026-27755?

Priority 49/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-27758 MEDIUM 4.3 UPGRADE SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain a cross-site request forgery vulnerability
CVE-2026-27757 HIGH 7.1 UPGRADE SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain an authentication vulnerability that allows
CVE-2026-27756 MEDIUM 6.1 UPGRADE SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain a reflected cross-site scripting vulnerabil
CVE-2026-27754 MEDIUM 6.5 UPGRADE SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 use the cryptographically broken MD5 hash function
CVE-2026-27753 MEDIUM 6.5 UPGRADE SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 contain an authentication bypass vulnerability that

References

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