How severe is CVE-2017-17174?

CVE-2017-17174 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-2017-17174 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17174?

CVE-2017-17174 primarily affects Huawei Rse6500 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-17174?

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

When was CVE-2017-17174 published?

CVE-2017-17174 was published on 2018-07-31 and last updated on 2026-06-17.

CVE-2017-17174

CVE-2017-17174 is a medium-severity vulnerability in Huawei Rse6500 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% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Huawei Rse6500 Firmware
Published: 2018-07-31
Last modified: 2026-06-17

Description

Some Huawei products RSE6500 V500R002C00; SoftCo V200R003C20SPCb00; VP9660 V600R006C10; eSpace U1981 V100R001C20; V200R003C20; V200R003C30; V200R003C50 have a weak algorithm vulnerability. To exploit the vulnerability, a remote, unauthenticated attacker has to capture TLS traffic between clients and the affected products. The attacker may launch the Bleichenbacher attack on RSA key exchange to decrypt the session key and the previously captured sessions by some cryptanalytic operations. Successful exploit may cause information leak.

Frequently asked questions

What is CVE-2017-17174?: Some Huawei products RSE6500 V500R002C00; SoftCo V200R003C20SPCb00; VP9660 V600R006C10; eSpace U1981 V100R001C20; V200R003C20; V200R003C30; V200R003C50 have a weak algorithm vulnerability. To exploit the vulnerability, a remote, unauthenticated attacker has to capture TLS traffic between clients and the affected products. The attacker may launch the Bleichenbacher attack on RSA key exchange to decrypt the session key and the previously captured sessions by some cryptanalytic operations. Successful exploit may cause information leak.
How severe is CVE-2017-17174?: CVE-2017-17174 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-2017-17174 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17174?: CVE-2017-17174 primarily affects Huawei Rse6500 Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-17174?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-17174 published?: CVE-2017-17174 was published on 2018-07-31 and last updated on 2026-06-17.

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180703-01-algorithm-en

Affected products (7)

cpe:2.3:o:huawei:rse6500_firmware:v500r002c00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:softco_firmware:v200r003c20spcb00:*:*:*:*:*:*:*
cpe:2.3:o:huawei:vp9660_firmware:v600r006c10:*:*:*:*:*:*:*
cpe:2.3:o:huawei:espace_u1981_firmware:v200r001c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:espace_u1981_firmware:v200r003c20:*:*:*:*:*:*:*
cpe:2.3:o:huawei:espace_u1981_firmware:v200r003c30:*:*:*:*:*:*:*
cpe:2.3:o:huawei:espace_u1981_firmware:v200r003c50:*:*:*:*:*:*:*

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