How severe is CVE-2017-17305?

CVE-2017-17305 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-17305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17305?

CVE-2017-17305 primarily affects Huawei Usg2205bsr Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-17305?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-17305 published?

CVE-2017-17305 was published on 2018-08-21 and last updated on 2026-06-17.

CVE-2017-17305

CVE-2017-17305 is a medium-severity vulnerability in Huawei Usg2205bsr Firmware with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Huawei Usg2205bsr Firmware
Published: 2018-08-21
Last modified: 2026-06-17

Description

Some Huawei Firewall products USG2205BSR V300R001C10SPC600; USG2220BSR V300R001C00; USG5120BSR V300R001C00; USG5150BSR V300R001C00 have a Bleichenbacher Oracle vulnerability in the IPSEC IKEv1 implementations. Remote attackers can decrypt IPSEC tunnel ciphertext data by leveraging a Bleichenbacher RSA padding oracle. Cause a Bleichenbacher oracle attack. Successful exploit this vulnerability can impact IPSec tunnel security.

Frequently asked questions

What is CVE-2017-17305?: Some Huawei Firewall products USG2205BSR V300R001C10SPC600; USG2220BSR V300R001C00; USG5120BSR V300R001C00; USG5150BSR V300R001C00 have a Bleichenbacher Oracle vulnerability in the IPSEC IKEv1 implementations. Remote attackers can decrypt IPSEC tunnel ciphertext data by leveraging a Bleichenbacher RSA padding oracle. Cause a Bleichenbacher oracle attack. Successful exploit this vulnerability can impact IPSec tunnel security.
How severe is CVE-2017-17305?: CVE-2017-17305 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-17305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17305?: CVE-2017-17305 primarily affects Huawei Usg2205bsr Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-17305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-17305 published?: CVE-2017-17305 was published on 2018-08-21 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180813-01-Bleichenbacher-en

Affected products (4)

cpe:2.3:o:huawei:usg2205bsr_firmware:v300r001c10spc600:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg2220bsr_firmware:v300r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg5120bsr_firmware:v300r001c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:usg5150bsr_firmware:v300r001c00:*:*:*:*:*:*:*

More vulnerabilities in Huawei Usg2205bsr Firmware

CVE-2017-17312 — High (CVSS 7.5): Some Huawei Firewall products USG2205BSR V300R001C10SPC600; USG2220BSR V300R001C00; USG5120BSR V300R001C00; USG5150BSR…
CVE-2017-17311 — High (CVSS 7.5): Some Huawei Firewall products USG2205BSR V300R001C10SPC600; USG2220BSR V300R001C00; USG5120BSR V300R001C00; USG5150BSR…

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