CVE-2017-9863

What it is

An issue was discovered in SMA Solar Technology products. If a user simultaneously has Sunny Explorer running and visits a malicious host, cross-site request forgery can be used to change settings in the inverters (for example, issuing a POST request to change the user password). All Sunny Explorer settings available to the authenticated user are also available to the attacker. (In some cases, this also includes changing settings that the user has no access to.) This may result in complete compromise of the device. NOTE: the vendor reports that exploitation is unlikely because Sunny Explorer is used only rarely. Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affected

At a glance

Exploitability

Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.7% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2017-08-05 17:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:29 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.7% in the next 30 days (EPSS).
• Severity: 8.8 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2017-08-05 17:29 UTC

Last modified

2026-06-17 01:29 UTC

Exploit probability

0.7% · EPSS, next 30 days

Weakness

CWE-352 · Cross-site request forgery

Record status

Modified

Affected

• Sma Sunny Boy 3600 Firmware
• Sma Sunny Boy 5000 Firmware
• Sma Sunny Tripower core1 Firmware
• Sma Sunny Tripower 15000tl Firmware
• Sma Sunny Tripower 20000tl Firmware
• Sma Sunny Tripower 25000tl Firmware
• Sma Sunny Tripower 5000tl Firmware
• Sma Sunny Tripower 12000tl Firmware

Attack profile CVSS 3.0 · 8.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

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