MediumCVE-2015-7846

    Huawei AR1200 Firmware: Information Disclosure (CVE-2015-7846)

    Published Sources: CVE.org

    What is affected, what to do

    Huawei S7700, S9700, S9300 before V200R07C00SPC500, and AR200, AR1200, AR2200, AR3200 before V200R005C20SPC200 allows attackers with physical access to the CF card to obtain sensitive information.

    The available sources name no fixed version. Check the vendor guidance in the references below.

    Affected
    • Huawei S9300 Firmware eq v200r001c00spc300..v200r001c00spc300
    • Huawei S9300 Firmware eq v200r002c00spc100..v200r002c00spc100
    • Huawei S9300 Firmware eq v200r003c00spc500..v200r003c00spc500
    • Huawei S9300 Firmware eq v200r005c00spc300..v200r005c00spc300
    • Huawei S9300 Firmware eq v200r006c00spc300..v200r006c00spc300
    • Huawei S9300 Firmware eq v200r006c00spc500..v200r006c00spc500
    • Huawei S9700 Firmware eq v200r001c00spc300..v200r001c00spc300
    • Huawei S9700 Firmware eq v200r002c00spc100..v200r002c00spc100
    • Huawei S9700 Firmware eq v200r003c00spc500..v200r003c00spc500
    • Huawei S9700 Firmware eq v200r005c00spc300..v200r005c00spc300
    • Huawei S9700 Firmware eq v200r006c00spc300..v200r006c00spc300
    • Huawei S9700 Firmware eq v200r006c00spc500..v200r006c00spc500
    • Huawei S7700 Firmware eq v200r001c00spc300..v200r001c00spc300
    • Huawei S7700 Firmware eq v200r002c00spc100..v200r002c00spc100
    • Huawei S7700 Firmware eq v200r003c00spc500..v200r003c00spc500
    • Huawei S7700 Firmware eq v200r005c00spc300..v200r005c00spc300
    • Huawei S7700 Firmware eq v200r006c00spc300..v200r006c00spc300
    • Huawei S7700 Firmware eq v200r006c00spc500..v200r006c00spc500
    • Huawei AR200 Firmware eq v200r003c00spc100..v200r003c00spc100
    • Huawei AR200 Firmware eq v200r003c00spc200..v200r003c00spc200
    • Huawei AR200 Firmware eq v200r003c01spc100..v200r003c01spc100
    • Huawei AR200 Firmware eq v200r003c01spc200..v200r003c01spc200
    • Huawei AR200 Firmware eq v200r003c01spc300..v200r003c01spc300
    • Huawei AR200 Firmware eq v200r003c01spc500..v200r003c01spc500
    • Huawei AR200 Firmware eq v200r003c01spc600..v200r003c01spc600
    • Huawei AR200 Firmware eq v200r003c01spc800..v200r003c01spc800
    • Huawei AR200 Firmware eq v200r003c01spc900..v200r003c01spc900
    • Huawei AR1200 Firmware eq v200r003c00spc100..v200r003c00spc100
    • Huawei AR1200 Firmware eq v200r003c00spc200..v200r003c00spc200
    • Huawei AR1200 Firmware eq v200r003c01spc100..v200r003c01spc100
    • Huawei AR1200 Firmware eq v200r003c01spc200..v200r003c01spc200
    • Huawei AR1200 Firmware eq v200r003c01spc300..v200r003c01spc300
    • Huawei AR1200 Firmware eq v200r003c01spc500..v200r003c01spc500
    • Huawei AR1200 Firmware eq v200r003c01spc600..v200r003c01spc600
    • Huawei AR1200 Firmware eq v200r003c01spc800..v200r003c01spc800
    • Huawei AR1200 Firmware eq v200r003c01spc900..v200r003c01spc900
    • Huawei Ar2200 Firmware eq v200r003c00spc100..v200r003c00spc100
    • Huawei Ar2200 Firmware eq v200r003c00spc200..v200r003c00spc200
    • Huawei Ar2200 Firmware eq v200r003c01spc100..v200r003c01spc100
    • Huawei Ar2200 Firmware eq v200r003c01spc200..v200r003c01spc200
    • Huawei Ar2200 Firmware eq v200r003c01spc300..v200r003c01spc300
    • Huawei Ar2200 Firmware eq v200r003c01spc500..v200r003c01spc500
    • Huawei Ar2200 Firmware eq v200r003c01spc600..v200r003c01spc600
    • Huawei Ar2200 Firmware eq v200r003c01spc800..v200r003c01spc800
    • Huawei Ar2200 Firmware eq v200r003c01spc900..v200r003c01spc900
    • Huawei AR3200 Firmware eq v200r003c00spc100..v200r003c00spc100
    • Huawei AR3200 Firmware eq v200r003c00spc200..v200r003c00spc200
    • Huawei AR3200 Firmware eq v200r003c01spc100..v200r003c01spc100
    • Huawei AR3200 Firmware eq v200r003c01spc200..v200r003c01spc200
    • Huawei AR3200 Firmware eq v200r003c01spc300..v200r003c01spc300
    • Huawei AR3200 Firmware eq v200r003c01spc500..v200r003c01spc500
    • Huawei AR3200 Firmware eq v200r003c01spc600..v200r003c01spc600
    • Huawei AR3200 Firmware eq v200r003c01spc800..v200r003c01spc800
    • Huawei AR3200 Firmware eq v200r003c01spc900..v200r003c01spc900

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    4.6

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    4.6

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: CVE.org

    0.3 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 17.9

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    25.53 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    4.6 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    4.6
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.3 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    17.9
    Elevated — this CVE ranks above at least 10% of all CVEs scored today.
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    Huawei S7700, S9700, S9300 before V200R07C00SPC500, and AR200, AR1200, AR2200, AR3200 before V200R005C20SPC200 allows attackers with physical access to the CF card to obtain sensitive information.

    Source: NVD (NIST), cvelistv5

    Vendors and products

    Affected operating systems

    Affected operating systems
    Otherhuaweiar1200_firmwarev200r003c00spc100
    Otherhuaweiar1200_firmwarev200r003c00spc200
    Otherhuaweiar1200_firmwarev200r003c01spc100
    Otherhuaweiar1200_firmwarev200r003c01spc200
    Otherhuaweiar1200_firmwarev200r003c01spc300
    Otherhuaweiar1200_firmwarev200r003c01spc500
    Otherhuaweiar1200_firmwarev200r003c01spc600
    Otherhuaweiar1200_firmwarev200r003c01spc800
    Otherhuaweiar1200_firmwarev200r003c01spc900
    Otherhuaweiar200_firmwarev200r003c00spc100
    Otherhuaweiar200_firmwarev200r003c00spc200
    Otherhuaweiar200_firmwarev200r003c01spc100
    Otherhuaweiar200_firmwarev200r003c01spc200
    Otherhuaweiar200_firmwarev200r003c01spc300
    Otherhuaweiar200_firmwarev200r003c01spc500
    Otherhuaweiar200_firmwarev200r003c01spc600
    Otherhuaweiar200_firmwarev200r003c01spc800
    Otherhuaweiar200_firmwarev200r003c01spc900
    Otherhuaweiar2200_firmwarev200r003c00spc100
    Otherhuaweiar2200_firmwarev200r003c00spc200
    Otherhuaweiar2200_firmwarev200r003c01spc100
    Otherhuaweiar2200_firmwarev200r003c01spc200
    Otherhuaweiar2200_firmwarev200r003c01spc300
    Otherhuaweiar2200_firmwarev200r003c01spc500

    References & sources

    • www1.huawei.comen/security/psirt/security-bulletins/security-advisories/hw-446…x_refsource_CONFIRM, Vendor advisory
    • securityfocus.com76173Vulnerability database, x_refsource_BID, Third-party advisory, Vulnerability database
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