CVE-2017-7909

highpriority · track · 40EPSS 0.026 · 85 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.62% (85th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-26

A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationMESR901cisa_csaf_ot
Advantech B+B SmartWorx is unable to provide mitigations for this product and is working to replace the product with a new model. Advantech B+B SmartWorx recommends that users place the device behind a firewall.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-603USCWE-603US

affected products (4)

Products and version ranges known to be affected.

MESR901: firmware versions 1.5.2 and priorall versionscisa_csaf_otUS
B+B SmartWorx, Advantech MESR901≤ 1.5.2cisa_csaf_otUS
n/a Advantech B+B SmartWorx MESR901≤ Advantech B+B SmartWorx MESR901enisa_euvdEU
advantech b+b smartworx mesr901 firmware≤ 1.5.2nvdUScpe:2.3:o:advantech_b\+b_smartworx:mesr901_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-17-122-03Advantech B+B SmartWorx MESR9012017-05-02icsa · cisa_csaf_otUS
ATTENTION: Remotely exploitable/low skill level to exploit.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2017-05-06modified 2026-06-17

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Related entries.

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+7680 more

references (6)

External citations — patches, advisories, analysis.

https://ics-cert.us-cert.gov/advisories/ICSA-17-122-03 cnnvd
https://www.securityfocus.com/bid/98257 cnnvd
http://www.securityfocus.com/bid/98257 enisa_euvd
https://ics-cert.us-cert.gov/advisories/ICSA-17-122-03 enisa_euvd
http://www.securityfocus.com/bid/98257Third Party AdvisoryVDB Entrynvd
https://ics-cert.us-cert.gov/advisories/ICSA-17-122-03Third Party AdvisoryUS Government Resourcenvd

scry

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