CVE-2025-30240: Arbitrary File Read via Improper Symlink Handling in USB HTTPS Access Path in multiple TP-Link Aginet Devices

Severity: medium (CVSS 5.1 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-10 · updated 2026-09-29
Weakness: CWE-59

Description

The affected TP-Link Aginet devices do not properly validate symbolic links created on external USB storage devices. By placing a crafted symbolic link on supported storage media, an attacker may cause the system to resolve the link. Successful exploitation may allow unauthorized read access to sensitive files within the device filesystem.

Affected products

TP-Link Systems Inc. EB810v(EU1) V1.0: before 0.6.0 3.0.0 v608b.0 Build 250613 Rel.10497n — fixed in 0.6.0 3.0.0 v608b.0 Build 250613 Rel.10497n
TP-Link Systems Inc. EX220(BR) V1.0/1.20/1.28/1.29/1.8: before 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n — fixed in 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n
TP-Link Systems Inc. EX220(BR) V2.0: before 0.19.0 2.0.0 v609b.0 Build 250814 Rel.49732n — fixed in 0.19.0 2.0.0 v609b.0 Build 250814 Rel.49732n
TP-Link Systems Inc. EX220(EU1) V1.0/1.20: before 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n — fixed in 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n
TP-Link Systems Inc. EX220(RU) V1.0: before 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n — fixed in 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n
TP-Link Systems Inc. EX220(US1) V1.0: before 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n — fixed in 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n
TP-Link Systems Inc. EX222(EU1) V1.0: before 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n — fixed in 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n
TP-Link Systems Inc. EX222(KR) V1.0: before 0.20.0 2.0.0 v609b.0 Build 260427 Rel.16915 — fixed in 0.20.0 2.0.0 v609b.0 Build 260427 Rel.16915
TP-Link Systems Inc. EX222(US1) V1.0: before 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n — fixed in 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n
TP-Link Systems Inc. EX520v(EU1)1.0: before 0.1.0 3.0.0 v60ee.0 Build 250310 Rel.55637n — fixed in 0.1.0 3.0.0 v60ee.0 Build 250310 Rel.55637n
TP-Link Systems Inc. EX820v(EU1) V1.0: before 0.4.0 3.1.9 v6087.0 Build 250928 Rel.59674n — fixed in 0.4.0 3.1.9 v6087.0 Build 250928 Rel.59674n
TP-Link Systems Inc. EX920(US2) V1.6/V1.0: before 0.8.0 3.2.2 v6080.0 Build 260309 Rel.54790n — fixed in 0.8.0 3.2.2 v6080.0 Build 260309 Rel.54790n
TP-Link Systems Inc. HB210 Pro(EU1)1.0: before 0.5.0 3.0.0 v60d5.0 Build 250922 Rel.13742n — fixed in 0.5.0 3.0.0 v60d5.0 Build 250922 Rel.13742n
TP-Link Systems Inc. HB210 Pro(US2)1.0/1.6: before 0.8.0 3.0.0 v60d5.0 Build 260318 Rel.78363n — fixed in 0.8.0 3.0.0 v60d5.0 Build 260318 Rel.78363n
TP-Link Systems Inc. HB210(EU1) 1.0: before 0.2.0 3.0.0 v60f9.0 Build 250826 Rel.47715n — fixed in 0.2.0 3.0.0 v60f9.0 Build 250826 Rel.47715n
TP-Link Systems Inc. HB210(US2) 1.0: before 0.2.0 3.0.0 v60f9.0 Build 250826 Rel.47715n — fixed in 0.2.0 3.0.0 v60f9.0 Build 250826 Rel.47715n
TP-Link Systems Inc. HB410( EU1) 1.0: before 0.3.0 3.0.0 v60bf.0 Build 250901 Rel.45574n — fixed in 0.3.0 3.0.0 v60bf.0 Build 250901 Rel.45574n
TP-Link Systems Inc. HB610(CA) V2.0: before 0.6.0 3.0.0 v60af.0 Build 251216 Rel.46954n — fixed in 0.6.0 3.0.0 v60af.0 Build 251216 Rel.46954n
TP-Link Systems Inc. HB610(EU1): before 0.6.0 3.0.0 v60af.0 Build 251204 Rel.20362n — fixed in 0.6.0 3.0.0 v60af.0 Build 251204 Rel.20362n
TP-Link Systems Inc. HB610(US2) V2.6/2.0: before 0.6.0 3.0.0 v60af.0 Build 251204 Rel.20362n — fixed in 0.6.0 3.0.0 v60af.0 Build 251204 Rel.20362n
TP-Link Systems Inc. HB710(EU1) 1.0: before 0.3.0 3.0.0 v60be.0 Build 251128 Rel.43956n — fixed in 0.3.0 3.0.0 v60be.0 Build 251128 Rel.43956n
TP-Link Systems Inc. HB710(US2) V1.6/1.0: before 0.3.0 3.0.0 v60be.0 Build 251128 Rel.43956n — fixed in 0.3.0 3.0.0 v60be.0 Build 251128 Rel.43956n
TP-Link Systems Inc. HB810(EU1) V2.0: before 0.10.0 3.2.2 v6095.0 Build 260306 Rel.47567n — fixed in 0.10.0 3.2.2 v6095.0 Build 260306 Rel.47567n
TP-Link Systems Inc. HB810(US2) V1.0/1.6/2.0/2.6: before 0.9.0 3.2.2 v6095.0 Build 260717 Rel.67188n — fixed in 0.9.0 3.2.2 v6095.0 Build 260717 Rel.67188n
TP-Link Systems Inc. VX1800v(EU1) V1.0: before 0.14.0 2.0.0 v6092.0 Build 250417 Rel.24761n — fixed in 0.14.0 2.0.0 v6092.0 Build 250417 Rel.24761n
TP-Link Systems Inc. VX420-G2h(AU) V3.0: before 0.2.0 2.0.0 v60df.0 Build 250427 Rel.38233n — fixed in 0.2.0 2.0.0 v60df.0 Build 250427 Rel.38233n
TP-Link Systems Inc. VX800v(DE) V1.0: before 800.0.16 — fixed in 800.0.16
TP-Link Systems Inc. XC220-G3v(EU1) V2.30: before 1.16.0 0.8.0 v6062.0 Build 250817 Rel.23310n — fixed in 1.16.0 0.8.0 v6062.0 Build 250817 Rel.23310n
TP-Link Systems Inc. XC220-G3v(US1) V2.30: before 1.16.0 0.8.0 v6062.0 Build 250817 Rel.23310n — fixed in 1.16.0 0.8.0 v6062.0 Build 250817 Rel.23310n
TP-Link Systems Inc. XX530v(BR)v1.0: before 0.6.0 3.0.0 v6096.0 Build 250416 Rel.26048n — fixed in 0.6.0 3.0.0 v6096.0 Build 250416 Rel.26048n

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. EB810v(EU1) V1.0 0.6.0 3.0.0 v608b.0 Build 250613 Rel.10497n; TP-Link Systems Inc. EX220(BR) V1.0/1.20/1.28/1.29/1.8 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n; TP-Link Systems Inc. EX220(BR) V2.0 0.19.0 2.0.0 v609b.0 Build 250814 Rel.49732n; TP-Link Systems Inc. EX220(EU1) V1.0/1.20 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n; TP-Link Systems Inc. EX220(RU) V1.0 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n; TP-Link Systems Inc. EX220(US1) V1.0 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n; TP-Link Systems Inc. EX222(EU1) V1.0 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n; TP-Link Systems Inc. EX222(KR) V1.0 0.20.0 2.0.0 v609b.0 Build 260427 Rel.16915; TP-Link Systems Inc. EX222(US1) V1.0 0.20.0 2.0.0 v605f.0 Build 250305 Rel.14728n; TP-Link Systems Inc. EX520v(EU1)1.0 0.1.0 3.0.0 v60ee.0 Build 250310 Rel.55637n; TP-Link Systems Inc. EX820v(EU1) V1.0 0.4.0 3.1.9 v6087.0 Build 250928 Rel.59674n; TP-Link Systems Inc. EX920(US2) V1.6/V1.0 0.8.0 3.2.2 v6080.0 Build 260309 Rel.54790n. Check the vendor advisory for mitigations.

References

https://www.tp-link.com/us/support/faq/5239/

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