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.
CVE-2026-27755
CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-02-27. a secondary CVSS source baseline 9.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 33%
- KEV
- Not listed
Published
February 27, 2026
Last Modified
June 17, 2026
Advisory Details (2)
Auto-updated Jul 27, 2026No patch confirmed yet.
generic
SODOLA SL902-SWTGW124AS <= 200.1.20 Predictable Session ID | Advisories | VulnCheck
https://www.vulncheck.com/advisories/sodola-sl902-swtgw124as-predictable-session-idgeneric
SODOLA 6 Port 2.5G Easy Web Managed Switch, 4 x 2.5G Base-T Ports, 2 x 10G SFP, ,Static Aggregation/QoS/VLAN/IGMP, 2.5Gb Network Home-lab Switch
https://www.sodola-network.com/products/sodola-6-port-2-5g-easy-web-managed-switch-4-x-2-5g-base-t-ports-2-x-10g-sfp-static-aggregation-qos-vlan-igmp-2-5gb-network-home-lab-switchWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 14:03 UTCEG score recompute
- 2026-07-27 14:03 UTCGHSA enrichment
Related CVEs(same CWE)
Same CWE
10 shownCWE-330
Frequently asked(5)
What is CVE-2026-27755?
CVE-2026-27755 is a critical vulnerability published on February 27, 2026. 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…
When was CVE-2026-27755 disclosed?
CVE-2026-27755 was first published in the National Vulnerability Database on February 27, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27755 actively exploited?
CVE-2026-27755 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.2% of all scored CVEs.
What is the CVSS score of CVE-2026-27755?
CVE-2026-27755 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-27755?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27755, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-27755
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